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CAS No. : | 1064194-10-0 | MDL No. : | MFCD16658899 |
Formula : | C8H14BrNO2 | Boiling Point : | No data available |
Linear Structure Formula : | - | InChI Key : | RUTPPPNQDPSSBM-UHFFFAOYSA-N |
M.W : | 236.11 | Pubchem ID : | 53415291 |
Synonyms : |
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Signal Word: | Warning | Class: | |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | |
Hazard Statements: | H302-H315-H319-H335 | Packing Group: | |
GHS Pictogram: |
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* 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 |
---|---|---|
100% | With potassium carbonate; In N,N-dimethyl-formamide; at 60℃; | To a solution of 5-bromopyridin-3-ol (0.285 g, 1.64 mmol) in DMF (2.5 mL) was added K2CO3 (0.453 g, 3.28 mmol), followed by <strong>[1064194-10-0]3-bromo-azetidine-1-carboxylic acid tert-butyl ester</strong> (0.425 g, 1.8 mmol) in DMF (0.5 mL) and the reaction mixture was heated to 60° C. and stirred over night. The reaction mixture was diluted with EtOAc, poured into sat. NaHCO3 solution (10 mL) and the aqueous layer was extracted EtOAc (2×20 mL). Combined organics were washed with brine, dried over Na2SO4, filtered and evaporated to dryness. The residue was purified by silica gel flash chromatography eluting with a 0 to 50percent EtOAc-heptane gradient to give the title compound (0.539 g, 100percent) as a colorless crystalline solid. MS: 329.1 (M+H+). |
100% | With potassium carbonate; In N,N-dimethyl-formamide; at 60℃; | Intermediate A-283-(5-Bromopyridin-3-yloxy)-azetidine-l-carboxylic acid tert-butyl esterTo a solution of 5-bromopyridin-3-ol (0.285 g, 1.64 mmol) in DMF (2.5 mL) was added K2CO3 (0.453 g, 3.28 mmol), followed by 3-bromo-azetidine-l-carboxylic acid tert-butyl ester (0.425 g, 1.8 mmol) in DMF (0.5 mL) and the reaction mixture was heated to 60 °C and stirred over night. The reaction mixture was diluted with EtOAc, poured into sat. NaHCC"3 solution (10 mL) and the aqueous layer was extracted EtOAc (2 x 20 mL).Combined organics were washed with brine, dried over Na2S04, filtered and evaporated to dryness. The residue was purified by silica gel flash chromatography eluting with a 0 to 50percent EtO Ac-heptane gradient to give the title compound (0.539 g, 100percent) as a colorless crystalline solid. MS: 329.1 (M+H+). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
100% | With sodium t-butanolate; In N,N-dimethyl-formamide; at 100℃; for 48.0h; | Into a 20-mL vial was placed 4-(4-phenoxyphenoxy)-5H-pyrrolo[3,2-d]pyrimidine (600.00 mg; 1.98 mmol), tert-butyl 3-bromoazetidine- l-carboxylate (934.10 mg, 3.96 mmol), and sodium tert-butoxide (760.42 mg, 7.91 mmol) suspended in DMF (8.00 ml). The reaction mixture was heated to 100 °C for 2 days. The reaction mixture was purified using flash column chromatography. Fractions containing the desired product were combined and concentrated under reduced pressured. The product was then lyophilized overnight to afford tert-butyl 3-(4-(4- phenoxyphenoxy)-5H-pyrrolo[3,2-d]pyrimidin-5-yl)azetidine-l-carboxylate (918.00 mg, 100percent yield) as a yellow, viscous liquid. MS: m/z = 459 [M+H]+. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
26% | With tetra-N-butylammonium tribromide; dibromoisocyanuric acid; In dichloromethane; at 20℃; for 3.0h;UV-irradiation; | General procedure: EXAMPLE 12 (0564) Bromodecarboxylation of alkanoic acids (0565) bromoisocyanurate (0566) RC02H -1 · RBr (0567) hv (0568) [00169] A mixture of alkanoic acid RC02H (2 mmol), bromoisocyanurate, additive (optionally) and solvent (12 mL) was stirred under fluorescent room light irradiation (FL). The reaction mixture washed with 1 M aq Na2S03, dried over Na2S04, filtered through short silica gel pad and concentrated in vacuo to yield crude alkyl bromide RBr. Optionally, the crude bromide was purified by chromatography on silica gel. The results are presented in Table 11. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
67% | With potassium carbonate; In 1-methyl-pyrrolidin-2-one; at 90℃; for 17.0h;Inert atmosphere; | 1-(2,2-diethoxyethyl)-7-hydroxy-1 ,2-dihydroquinolin-2-one 9d (0.20 g, 0.72 mmol) , tert- butyl 3-bromoazetidine-1-carboxylate (0.34 g, 1.44 mmol) and K2CO3 (0.30 g, 2.16 mmol) were mixed with NMP (3 mL) and heated to 90 °C for 17 h under nitrogen. The reaction mixture was allowed to cool to room temperature, partitioned between EtOAc (50 mL) and H2O (50 mL) and the organic phase separated. The aqueous phase was further extracted with EtOAc (2 x 50 mL) and the extracts combined with the original organic layer and concentrated under reduced pressure to give a residue. The residue was partitioned between Et20 (30 mL) and H2O (30 mL) and the layers separated. The organic layer was further washed with H2O (2 x 30 mL), brine (30 mL) and concentrated under reduced pressure. The residue was dissolved in DCM and H2O and passed through a SPE phase separator. The DCM filtrate was collected and concentrated under reduced pressure to give a clear oil. Purification via silica gel chromatography using 0-100percent EtOAc /pet ether gave tert-butyl 3-[1-(2,2-diethoxyethyl)-2-oxo-1 ,2-dihydroquinolin-7-yl]oxy}azetidine-1- carboxylate 103a (210.0 mg, 67percent) as a white gum. LC-MS (Method A) 387.2 [M-OEt]+, RT 3.32 min |
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