Structure of 84547-84-2
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CAS No. : | 84547-84-2 |
Formula : | C5H5BrN2O2 |
M.W : | 205.01 |
SMILES Code : | O=C(C1=C(Br)C=NN1C)O |
MDL No. : | MFCD00463982 |
InChI Key : | YXIJCAVZGBGUKM-UHFFFAOYSA-N |
Pubchem ID : | 673686 |
GHS Pictogram: |
![]() |
Signal Word: | Warning |
Hazard Statements: | H302-H315-H319-H335 |
Precautionary Statements: | P261-P305+P351+P338 |
Num. heavy atoms | 10 |
Num. arom. heavy atoms | 5 |
Fraction Csp3 | 0.2 |
Num. rotatable bonds | 1 |
Num. H-bond acceptors | 3.0 |
Num. H-bond donors | 1.0 |
Molar Refractivity | 38.15 |
TPSA ? Topological Polar Surface Area: Calculated from |
55.12 ?2 |
Log Po/w (iLOGP)? iLOGP: in-house physics-based method implemented from |
1.18 |
Log Po/w (XLOGP3)? XLOGP3: Atomistic and knowledge-based method calculated by |
0.78 |
Log Po/w (WLOGP)? WLOGP: Atomistic method implemented from |
0.88 |
Log Po/w (MLOGP)? MLOGP: Topological method implemented from |
0.43 |
Log Po/w (SILICOS-IT)? SILICOS-IT: Hybrid fragmental/topological method calculated by |
0.45 |
Consensus Log Po/w? Consensus Log Po/w: Average of all five predictions |
0.74 |
Log S (ESOL):? ESOL: Topological method implemented from |
-1.91 |
Solubility | 2.54 mg/ml ; 0.0124 mol/l |
Class? Solubility class: Log S scale |
Very soluble |
Log S (Ali)? Ali: Topological method implemented from |
-1.52 |
Solubility | 6.22 mg/ml ; 0.0303 mol/l |
Class? Solubility class: Log S scale |
Very soluble |
Log S (SILICOS-IT)? SILICOS-IT: Fragmental method calculated by |
-1.03 |
Solubility | 19.2 mg/ml ; 0.0935 mol/l |
Class? Solubility class: Log S scale |
Soluble |
GI absorption? Gatrointestinal absorption: according to the white of the BOILED-Egg |
High |
BBB permeant? BBB permeation: according to the yolk of the BOILED-Egg |
Yes |
P-gp substrate? P-glycoprotein substrate: SVM model built on 1033 molecules (training set) |
No |
CYP1A2 inhibitor? Cytochrome P450 1A2 inhibitor: SVM model built on 9145 molecules (training set) |
No |
CYP2C19 inhibitor? Cytochrome P450 2C19 inhibitor: SVM model built on 9272 molecules (training set) |
No |
CYP2C9 inhibitor? Cytochrome P450 2C9 inhibitor: SVM model built on 5940 molecules (training set) |
No |
CYP2D6 inhibitor? Cytochrome P450 2D6 inhibitor: SVM model built on 3664 molecules (training set) |
No |
CYP3A4 inhibitor? Cytochrome P450 3A4 inhibitor: SVM model built on 7518 molecules (training set) |
No |
Log Kp (skin permeation)? Skin permeation: QSPR model implemented from |
-7.0 cm/s |
Lipinski? Lipinski (Pfizer) filter: implemented from |
0.0 |
Ghose? Ghose filter: implemented from |
None |
Veber? Veber (GSK) filter: implemented from |
0.0 |
Egan? Egan (Pharmacia) filter: implemented from |
0.0 |
Muegge? Muegge (Bayer) filter: implemented from |
0.0 |
Bioavailability Score? Abbott Bioavailability Score: Probability of F > 10% in rat |
0.56 |
PAINS? Pan Assay Interference Structures: implemented from |
0.0 alert |
Brenk? Structural Alert: implemented from |
0.0 alert: heavy_metal |
Leadlikeness? Leadlikeness: implemented from |
No; 1 violation:MW<1.0 |
Synthetic accessibility? Synthetic accessibility score: from 1 (very easy) to 10 (very difficult) |
1.55 |
* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
15 g | With sulfuric acid; nitric acid; at 20 - 50℃; for 32.0h;Cooling with ice; | Compound 22 (20 g) was dissolved in 100 mL of concentrated sulfuric acid.33 mL of concentrated nitric acid was slowly added dropwise in an ice water bath.After reacting for 16 h at room temperature, TLC showed a large amount of substrate remaining.After heating to 50 ° C for 16 h, the substrate substantially disappeared.After cooling, the reaction solution was slowly added dropwise to 1 L of ice water.Extract with ethyl acetate and wash the organic phase several times with water until pH = 7.After concentration, column chromatography gave yellowSolid 23 (15 g). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
N-methyl-4-bromopyrazole-3-carboxylic acid was prepared according to known methods, see: Yu. A. M.; Andreeva, M. A.; Perevalov, V. P.; Stepanov, V. I.; Dubrovskaya, V. A.; and Seraya, V. I. in Zh. Obs. Khim. (Journal of General Chemistry of the USSR) 1982, 52, 2592, and refs cited therein. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
48% | With N-ethyl-N,N-diisopropylamine; bromo-tris(1-pyrrolidinyl)phosphonium hexafluorophosphate; In tetrahydrofuran; DMF (N,N-dimethyl-formamide); at 25℃; for 26.0h; | To a solution of N-METHYL4-BRORNOPYRAZOLE-3-CARBOXYLIC ACID (2.0 g), available from step A, in 65 mL of anhydrous DMF was added BROMOTRIPYRROLIDINOPHOSPHONIUM HEXAFLUOROPHOSPHATE (PyBrop, 4.60 g), dimethyl amine (10 mL, 2.0 M in THF) and DIISOPROPYLETHYL amine (5.2 mL) at 25 C. The mixture was stirred for 26 h, and concentrated under reduced pressure to an oily residue. This residue was treated with a 1.0 M NAOH aqueous solution, and extracted with ethyl acetate (50 mL x 4). The organic extracts were combined, washed with brine, and dried with anhydrous NA2SO4. Removal of solvents yielded an oil, which was purified by preparative thin layer chromatography, eluting with CH2CI2-MeOH (20: 1), to give 1.09 g of the amide product (48%, MH+ = 232.0). |
48% | To a solution of N-methyl-4-bromopyrazole-3-car-boxylic acid (2.0 g), available from step A, in 65 mL of anhydrous DMF was added bromotripyrrolidinophospho-nium hexafluorophosphate (PyBrop, 4.60 g), dimethyl amine (10 mL, 2.0 M in THF) and diisopropylethyl amine (5.2 mL) at 25 C. The mixture was stirred for 26 h, and concentrated under reduced pressure to an oily residue. This residue was treated with a 1.0 M NaOH aqueous solution, and extracted with ethyl acetate (50 mLx4). The organic extracts were combined, washed with brine, and dried with anhydrous Na2SO4. Removal of solvents yielded an oil, which was purified by preparative thin layer chromatogra-phy, eluting with CH2Cl2-MeOH (20:1), to give 1.09 g of the amide product (48%, MH+=232.0). | |
48% | Step B; To a solution of <strong>[84547-84-2]N-methyl-4-bromopyrazole-3-carboxylic acid</strong> (2.0 g), available from step A, in 65 mL of anhydrous DMF was added bromotripyrrolidinophosphonium hexafluorophosphate (PyBrop, 4.60 g), dimethyl amine (10 mL, 2.0 M in THF) and diisopropylethyl amine (5.2 mL) at 25 C. The mixture was stirred for 26 h, and concentrated under reduced pressure to an oily residue. This residue was treated with a 1.0 M NaOH aqueous solution, and extracted with ethyl acetate (50 mL x 4). The organic extracts were combined, washed with brine, and dried with anhydrous Na2SO4. Removal of solvents yielded an oil, which was purified by preparative thin layer chromatography, eluting with CH2CI2-MeOH (20: 1), to give 1.09 g of the amide product (48%, MH+ = 232.0). |
48% | With N-ethyl-N,N-diisopropylamine; bromo-tris(1-pyrrolidinyl)phosphonium hexafluorophosphate; In tetrahydrofuran; DMF (N,N-dimethyl-formamide); at 25℃; for 26.0h; | To a solution of <strong>[84547-84-2]N-methyl-4-bromopyrazole-3-carboxylic acid</strong> (2.0 g), available from step A, in 65 mL of anhydrous DMF was added bromotripyrrolidinophosphonium hexafluorophosphate (PyBrop, 4.60 g), dimethyl amine (10 mL, 2.0 M in THF) and diisopropylethyl amine (5.2 mL) at 25 C. The mixture was stirred for 26 h, and concentrated under reduced pressure to an oily residue. This residue was treated with a 1.0 M NaOH aqueous solution, and extracted with ethyl acetate (50 mL x 4). The organic extracts were combined, washed with brine, and dried with anhydrous Na2SO4. Removal of solvents yielded an oil, which was purified by preparative thin layer chromatography, eluting with CH2CI2-MeOH (20: 1), to give 1.09 g of the amide product (48%, MH+ = 232.0). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
48% | With bromotripyrrolidinophosphonium hexafluorophosphate; dimethyl amine; N-ethyl-N,N-diisopropylamine; In DMF (N,N-dimethyl-formamide); at 25℃; for 26.0h; | To a solution of <strong>[84547-84-2]N-methyl-4-bromopyrazole-3-carboxylic acid</strong> (2.0 g), available from step A, in 65 mL of anhydrous DMF was added bromotripyrrolidinophosphonium hexafluorophosphate (PyBrop, 4.60 g), dimethyl amine (10 mL, 2.0 M in THF) and diisopropylethyl amine (5.2 mL) at 25 C. The mixture was stirred for 26 h, and concentrated under reduced pressure to an oily residue. This residue was treated with a 1.0 M NaOH aqueous solution, and extracted with ethyl acetate (50 mL?4). The organic extracts were combined, washed with brine, and dried with anhydrous Na2SO4. Removal of solvents yielded an oil, which was purified by preparative thin layer chromatography, eluting with CH2Cl2-MeOH (20:1), to give 1.09 g of the amide product (48%, MH+=232.0). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
PREPARATIVE EXAMPLE 15; Step A; N-methyl-4-bromopyrazole-3-carboxylic acid was prepared according to known methods, see: Yu. A. M.; Andreeva, M. A.; Perevalov, V. P.; Stepanov, V. I. ; Dubrovskaya, V. A.; and Seraya, V. l. in Zh. Obs. Khim, (Journal of General Chemistry of the USSR) 1982,52, 2592 (and the references cited therein) the disclosure of whichis incorporated hereinby reference thereto. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
65.4% | With thionyl chloride; for 18.0h;Reflux; | <strong>[84547-84-2]4-Bromo-2-methyl-2H-pyrazole-3-carboxylic acid</strong> (6 g, 29.3 mmol) was added to 150 mL of methanol treated with thionyl chloride (3.5 g, 29.3 mmol). The mixture was refluxed for 18 firs. Solvents were evaporated and the residue was extracted with dichloromethane and 0.5N sodium hydroxide solution. The organic layer was washed with brine and dried. After the evaporation of solvents, a white solid (4.19 g, 65.4percent yield) was obtained as the desired compound 4-bromo-2- methyl-2H-pyrazole-3-carboxylic acid methyl ester. 1H NMR (400 MHz, CDC13) delta ppm 3.97 (s, 3H), 4.19 (s, 3H), 7.51 (s, 1H). The aqueous extraction was filtered and neutralized with IN hydrochloric acid. The white solid was filtered and dried to give the unreacted starting material carboxylic acid (1.51 g). |
63% | Part A. <strong>[84547-84-2]4-bromo-2-methyl-2H-pyrazole-3-carboxylic acid</strong> methyl ester To the suspension of <strong>[84547-84-2]4-Bromo-2-methyl-2H-pyrazole-3-carboxylic acid</strong> (0.205 g, 1 mmol) in methanol (2 mL) was added thionyl chloride (0.29 mL, 4 mmol). The suspension was heated at 90° C. for 18 h to give a clear solution. The solution was cooled to rt and then concentrated. The residue was dissolved in EtOAc (10 mL), and washed with sat. NaHCO3, brine, dried over Na2SO4, filtered and concentrated to give 0.137 g (63percent) of the methyl ester as a white solid. 1H NMR (400 MHz, CDCl3) delta: 3.95 (s, 3H), 4.17 (s, 3H), 7.53 (s, 1H). HRMS calc'd for C6H8BrN2O2: 218.9769. Found: 218.9770. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With ammonium chloride; O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate; N-ethyl-N,N-diisopropylamine; In N,N-dimethyl-formamide; at 20℃; for 0.166667h; | Example 434-{3-[(1S)-1-(2-Chloro-3-fluoro-6-methoxyphenyl)ethyl]-1H-pyrrolo[2,3-b]pyridin-5-yl}-1-methyl-1H-pyrazole-5-carboxamideA mixture of <strong>[84547-84-2]4-bromo-2-methyl-2H-pyrazole-3-carboxylic acid</strong> (20.0 mg, 0.0976 mmol), NH4Cl (52.2 mg, 0.976 mmol), TBTU (62.6 mg, 0.195 mmol), DIPEA (0.170 mL, 0.976 mmol) and DMF (2 mL, 20 mmol) was stirred at rt for 10 min.The material was extracted with EtOAc, and washed with sat. NaHCO3 (3*) to remove carboxylic acid starting material.The organic layer was concentrated in vacuo. 3-[(S)-1-(2-Chloro-3-fluoro-6-methoxyphenyl)-ethyl]-5-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-1H-pyrrolo[2,3-b]pyridine (15.0 mg, 0.0348 mmol), (1,1'bis-(diphenylphosphino)-ferrocene) palladium dichloride (3.57 mg, 0.00488 mmol), K2CO3 (20.2 mg, 0.146 mmol) and 4:1 dioxane:H2O (1 mL, 10 mmol) were added, and the mixture was heated to 95° C. for 30 min.The solution was used directly for HPLC purification, and the fractions containing the pure product were concentrated in vacuo to afford the title compound as a white solid. 1H NMR (400 MHz, CD3OD): delta=1.79 (d, J=7.3 Hz, 3H), 3.70 (br. s., 3H), 3.99 (s, 3H), 5.09-5.16 (m, 1H), 6.90 (dd, J=9.2, 4.2 Hz, 1H), 7.08 (t, J=8.8 Hz, 1H), 7.34 (s, 1H), 7.50 (s, 1H), 7.59 (br. s., 1H), 8.20 (br. s., 1H). MS (ES+): m/z=428.11/430.12 (100/50) [MH+]. HPLC: tR=1.34 min (polar-3 min, UPLC-ACQUITY). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
92% | With borane-THF; In tetrahydrofuran; at 80℃; for 12.0h;Inert atmosphere; | A mixture of 4-bromo- 1 -methyl - 1 //-pyrazole-5-carboxylic acid (4.80 g, 23.4 mmol, CAS 84547-84-2) in THF (40.00 mL) was added BH3/THF (93.60 mL, 1 M). The mixture was stirred at 80 C for 12 hours under N2 atmosphere. To the mixture was added EtOAc (200 mL). The mixture was washed with saturated NaHCO, (200 mL x 3). The organic layer was dried over anhydrous Na2S04, filtered and concentrated to give a residue. The residue was purified by column chromatography (petroleum ether : ethyl acetate = 100 : 0 to 100 : 10) to give (4-bromo-l -methyl- li-pyrazol-5-yl)methanol (4.10 g, 92% yield) as a white solid. 1HNMR (400 MHz, DMSO-6): d 7.26 (s, 1H), 4.62 (s, 2H), 3.86 (s, 3H). |
77% | With borane-THF; In tetrahydrofuran; at 50℃; for 48.0h; | A mixture of 4-bromo- 1 -methyl- 1 H-pyrazole-5-carboxylic acid (5.0 g, 24.4 mmol) and BH3.THF (36.6 mL of a 1 M solution in THF, 36.6 mmol) in THF (50 mL) was stirred at 50 C for 2 days; at this point LCMS showed the completion of the reaction. The reaction was cooled to RT and cautiously quenched with aq. 1N HC1 and stirred at RT for 1 h, after which the mixture was extracted with EtOAc (3 X 50 mL). The combined organic extracts were concentrated in vacuo. The residue was chromato graphed (80 g Si02; continuous gradient from 0% to 100% EtOAc in hexanes, 25 min) to give the title compound (3.60 g, 18.9 mmol, 77 % yield) as a white solid. LCMS, [M+H]+ = 193.0. |
77% | With borane-THF; In tetrahydrofuran; at 50℃; for 48.0h;Inert atmosphere; | A mixture of 4-bromo- 1 -methyl- 1 H-pyrazole-5-carboxylic acid (5.0 g, 24.4 mmol) and BH3.THF (36.6 mL of a 1 M solution in THF, 36.6 mmol) in THF (50 mL) was stirred at 50 C for 2 days; at this point LCMS showed the completion of the reaction. The reaction was cooled to RT and cautiously quenched with aq. IN HC1 and stirred at RT for 1 h, after which the mixture was extracted with EtOAc (3 X 50 mL). The combined organic extracts were concentrated in vacuo. The residue was chromatographed (80 g Si02; continuous gradient from 0% to 100% EtOAc in hexanes, 25 min) to give the title compound (3.60 g, 18.9 mmol, 77 % yield) as a white solid. LCMS, [M+H]+ = 193.0. |
77% | With borane-THF; In tetrahydrofuran; at 50℃; for 48.0h; | A mixture of 4-bromo-l-methyl-lH-pyrazole-5-carboxylic acid (5.0 g, 24.4 mmol) and BH3.THF (36.6 mL of a 1 M solution in THF, 36.6 mmol) in THF (50 mL) was stirred at 50 C for 2 days; at this point LCMS showed the completion of the reaction. The reaction was cooled to RT and cautiously quenched with aq. 1N F1C1 and stirred at RT for 1 h, after which the mixture was extracted with EtOAc (3 X 50 mL). The combined organic extracts were concentrated in vacuo. The residue was (0667) chromatographed (80 g S1O2; continuous gradient from 0% to 100% EtOAc in hexanes, 25 min) to give the title compound (3.60 g, 18.9 mmol, 77 % yield) as a white solid. LCMS, [M+H]+ = 193.0. |
Example 44 (4-{3-[(1S)-1-(2-Chloro-3-fluoro-6-methoxyphenyl)ethyl]-1H-pyrrolo[2,3-b]pyridin-5-yl}-1-methyl-1H-pyrazol-5-yl)methanol To a solution of <strong>[84547-84-2]4-bromo-2-methyl-2H-pyrazole-3-carboxylic acid</strong> (20.0 mg, 0.0976 mmol) in THF (3 mL, 40 mmol) was added 1.0 M of BH3.THF in THF (0.49 mL, 0.49 mmol), and the resulting solution was heated to 60 C. overnight. The material was extracted with EtOAc, and washed with sat. NaHCO3 (3*) to remove carboxylic acid starting material. The organic layer was concentrated in vacuo. 3-[(S)-1-(2-Chloro-3-fluoro-6-methoxyphenyl)-ethyl]-5-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-1H-pyrrolo[2,3-b]pyridine (15.0 mg, 0.0348 mmol), (1,1'bis-(diphenylphosphino)-ferrocene) palladium dichloride (3.57 mg, 0.00488 mmol), K2CO3 (20.2 mg, 0.146 mmol) and 4:1 dioxane:H2O (1 mL, 10 mmol) were added, and the mixture was heated to 95 C. for 30 min. The solution was used directly for HPLC purification, and the fractions containing the pure product were concentrated in vacuo to afford the title compound as a white solid. 1H NMR (400 MHz, CD3OD): delta=1.80 (d, J=7.1 Hz, 3H), 3.67 (br. s., 3H), 3.96 (s, 3H), 4.55 (s, 2H), 5.08-5.17 (m, 1H), 6.90 (dd, J=9.1, 4.3 Hz, 1H), 7.08 (t, J=8.8 Hz, 1H), 7.34 (d, J=1.3 Hz, 1H), 7.46 (s, 1H), 7.53 (s, 1H), 8.15-8.22 (m, 1H). MS (ES+): m/z=415.13/417.13 (100/50) [MH+]. HPLC: tR=1.37 min (polar-3 min, UPLC-ACQUITY). | ||
With borane-THF; In tetrahydrofuran; at 20 - 50℃; for 73.0h; | To a RT solution of 4-bromo-l -methyl- lH-pyrazole-5-carboxylic acid (2.0 g, 9.8 mmol) in THF (24.4 ml) was added BH3.THF complex (19.5 mL of a 1M solution in TFIF, 19.5 mmol) and the reaction was stirred at RT for 1 h, then was heated to 50 C and stirred at 50 C for 3 days, then was cooled to RT. The reaction was quenched slowly by dropwise addition of 1M aq. HC1 (10 mL) at RT, then was partitioned between CH2Cl2 (30 mL) and water (30 mL). The aqueous phase was extracted with CFLCh (2 X 30 mL) and the combined organic extracts were dried (MgS04) and filtered through a pad of Si02 to give the crude title compound (1.86 g, 100 % yield) as a white solid. LCMS, [M + H]+ = 191.0, 193.0. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
<strong>[84547-84-2]4-Bromo-2-methyl-2H-pyrazole-3-carboxylic acid</strong> (2 g, 9.76 mmol) and triethylamine (1.50 mL, 10.73 mmol) were combined in toluene (10 mL).Diphenylphosphoryl azide (2.31 mL, 10.73 mmol) was added and the reaction stirred at room temperature for 3 hours . tert-Butanol (1.12 mL, 11.71 mmol) was added and the reaction was stirred at 60 °C overnight. After cooling the ?-BuOH was removed under vacuum and the reaction was submitted to EtOAc/ELO workup. The crude material was purified via silica gel chromatography (0-100percent EtOAc in hexanes) to give the title compound. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With diphenyl phosphoryl azide; triethylamine; In toluene; at 80℃; for 1.0h; | <strong>[84547-84-2]4-Bromo-2-methyl-2H-pyrazole-3-carboxylic acid</strong> (787.2 mg, 3.84 mmol), DPPA (1.16 g, 4.22 mmol), (R)-l-phenylethanol (491 mg, 4.02 mmol) and TEA (1.10 mL, 7.68 mmol) were combined in 15 mL of toluene to give a clear solution. The mixture was heated to 80 °C and stirred for 1 fir. Solvents were evaporated and the residue was extracted with ethyl acetate and sodium bicarbonate solution. The organic layer was dried and evaporated to give an oily material (1.38 g). TLC indicated no UV absorption. 1H-NMR of the crude material indicated 75percent desired compound as 4-bromo-2-methyl-2H-pyrazol-3-yl-carbamic acid (R)-l-phenyl-ethyl ester. LRMS calcd for Ci3Hi4BrN302 (m/e) 324.0, obsd 323.0 (M-H, ES-). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
77.3 g | With n-butyllithium; diisopropylamine; In tetrahydrofuran; acetone; at -78 - 0℃; for 1.0h;Inert atmosphere; | tHF (anhydrous) 600 ml was added to a 2 L reaction flask.Diisopropylamine 65.4g,Argon replacement protection,Dry ice acetone was cooled to -78 °C. Add 2.5M n-butyl lithium 258ml,The temperature is raised at 0 ° C for 0.5 h, and the temperature is lowered to -78 ° C.80.0 g of 1-methyl-4-bromopyrazole was added dropwise, and the reaction was maintained at -78 ° C for 1 h.Pass dry carbon dioxide gas until the reaction is complete.TLC showed the reaction was complete, and 1N HCl was added dropwise to adjust pH = 2-3.A large amount of white solid precipitated. After cooling at 0 ° C for 3 h, filter.Drying at 40 ° C for 16 h gave a white solid compound 22 (77.3 g). |
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