成人免费xx,国产又黄又湿又刺激不卡网站,成人性视频app菠萝网站,色天天天天

Welcome to chemicalbook!
Chinese English Japanese Germany Korea
400-158-6606
Try our best to find the right business for you.
Do not miss inquiry messages Please log in to view all inquiry messages.

Welcome back!

ChemicalBook CAS DataBase List (4S,7R,8S,9S,13Z,16S)-4,8-Bis-{[tert-butyl(dimethyl)silyl]oxy}-5,5,7,9,13-pentamethyl-16-[(E)-1-methyl-2-(2-methyl-1,3-thiazol-4-yl)ethenyl]oxocyclohexadec-13-ene-2,6-dione
189453-35-8

(4S,7R,8S,9S,13Z,16S)-4,8-Bis-{[tert-butyl(dimethyl)silyl]oxy}-5,5,7,9,13-pentamethyl-16-[(E)-1-methyl-2-(2-methyl-1,3-thiazol-4-yl)ethenyl]oxocyclohexadec-13-ene-2,6-dione synthesis

13synthesis methods
193146-26-8 Synthesis
(3S,6R,7S,12Z,15S,16E)-3,7-Bis-{[tert-butyl(dimethyl)silyl]oxy}-15-hydroxy-4,4,6,8,12,16-hexamethyl-17-(2-methyl-1,3-thiazol-4-yl)-5-oxoheptadeca-12,16-dienoic Acid

193146-26-8
10 suppliers
inquiry

(4S,7R,8S,9S,13Z,16S)-4,8-Bis-{[tert-butyl(dimethyl)silyl]oxy}-5,5,7,9,13-pentamethyl-16-[(E)-1-methyl-2-(2-methyl-1,3-thiazol-4-yl)ethenyl]oxocyclohexadec-13-ene-2,6-dione

189453-35-8
11 suppliers
inquiry

-

Yield:189453-35-8 90%

Reaction Conditions:

Stage #1: (3S,6R,7S,8S,12Z,15S,16E)-3,7-bis{[tert-butyl(dimethyl)silyl]oxy}-15-hydroxy-4,4,6,8,12,16-hexamethyl-17-(2-methyl-1,3-thiazol-4-yl)-5-oxoheptadeca-12,16-dienoic acidwith 2,4,6-trichlorobenzoyl chloride;triethylamine in tetrahydrofuran at 20; for 0.333333 h;
Stage #2: with dmap in tetrahydrofuran;toluene; for 1 h;

References:

Sawada, Daisuke;Kanai, Motomu;Shibasaki, Masakatsu [Journal of the American Chemical Society,2000,vol. 122,# 43,p. 10521 - 10532]

(4S,7R,8S,9S,13Z,16S)-4,8-Bis-{[tert-butyl(dimethyl)silyl]oxy}-5,5,7,9,13-pentamethyl-16-[(E)-1-methyl-2-(2-methyl-1,3-thiazol-4-yl)ethenyl]oxocyclohexadec-13-ene-2,6-dione Related Search: