HRID1744794

反应详情

EQUATION

反应方程式

REACTANTS

反应物

HCID962

Water

H2O

HCID24758

Sodium hydride

HNa

HCID3832489

benzyl 4-bromobutanoate

C11H13BrO2

结构：CC(C)(C)[Si](C)(C)O[C@H]1CC[C@H]2[C@@H]3[C@H](CCCc4cc(O)cc(OCc5ccccc5)c4)C[C@H]4CC(=O)CC[C@]4(C)[C@H]3CC[C@]12C

HCID69626707

未命名化合物

PRODUCTS

生成物

结构：CC(C)(C)[Si](C)(C)O[C@H]1CC[C@H]2[C@@H]3[C@H](CCCc4cc(OCCCC(=O)OCc5ccccc5)cc(OCc5ccccc5)c4)C[C@H]4CC(=O)CC[C@]4(C)[C@H]3CC[C@]12C

HCID69626901

未命名化合物

AUXILIARIES

试剂、催化剂与溶剂

溶剂HCID6228

N,N-Dimethylformamide

C3H7NO

PROCEDURE

实验过程

A solution of 17β-(tert-butyldimethylsilyloxy)-7α-(3-(3-benzyloxy-5-hydroxyphenyl)propyl)-5α-androstan-3-one (21.0 mg) in DMF (0.3 ml) was cooled on ice, followed by addition of sodium hydride (1.6 mg) and 15-crown-5-ether (7.8 μl). After the reaction mixture was stirred for 30 minutes, 4-bromo-n-butyric acid benzyl ester (10 mg) was added and stirred on ice for 1 hour. Water was added to the reaction mixture, which was then extracted with ethyl acetate. The organic layer was washed with saturated aqueous sodium chloride, dried over anhydrous magnesium sulfate and then filtered. After evaporation under reduced pressure to remove the solvent, the resulting residue was purified by silica gel column chromatography (eluent: ethyl acetate/n-hexane=1/4) to give 17β-(tert-butyldimethylsilyloxy)-7α-(3-(3-benzyloxy-5-(3-(benzyloxycarbonyl)propoxy)phenyl)propyl)-5α-androstan-3-one.

WORKUP

后处理

stirringstirred on ice for 1 hour
extractionwas then extracted with ethyl acetate
washThe organic layer was washed with saturated aqueous sodium chloride
dry with materialdried over anhydrous magnesium sulfate
filtrationfiltered
customAfter evaporation under reduced pressure
customto remove the solvent
customthe resulting residue was purified by silica gel column chromatography (eluent: ethyl acetate/n-hexane=1/4)

来源与证据

来源类型: Open Reaction Database
ORD 记录: ord-c6387fcf6b43481a82ad554483a5229d
来源数据集: uspto-grants-2006_03
DOI: 10.6084/m9.figshare.5104873.v1
专利: US07018993B2
来源说明: uspto-grants-2006_03

反应 SMILES

[Si:1]([O:8][C@H:9]1[CH2:14][CH2:13][C@H:12]2[C@H:15]3[C@H:25]([CH2:26][CH2:27][C@:10]12[CH3:11])[C@:23]1([CH3:24])[C@H:18]([CH2:19][C:20](=[O:28])[CH2:21][CH2:22]1)[CH2:17][C@H:16]3[CH2:29][CH2:30][CH2:31][C:32]1[CH:37]=[C:36]([OH:38])[CH:35]=[C:34]([O:39][CH2:40][C:41]2[CH:46]=[CH:45][CH:44]=[CH:43][CH:42]=2)[CH:33]=1)([C:4]([CH3:7])([CH3:6])[CH3:5])([CH3:3])[CH3:2].[H-].[Na+].[CH2:49]([O:56][C:57](=[O:62])[CH2:58][CH2:59][CH2:60]Br)[C:50]1[CH:55]=[CH:54][CH:53]=[CH:52][CH:51]=1.O>CN(C=O)C>[Si:1]([O:8][C@H:9]1[CH2:14][CH2:13][C@H:12]2[C@H:15]3[C@H:25]([CH2:26][CH2:27][C@:10]12[CH3:11])[C@:23]1([CH3:24])[C@H:18]([CH2:19][C:20](=[O:28])[CH2:21][CH2:22]1)[CH2:17][C@H:16]3[CH2:29][CH2:30][CH2:31][C:32]1[CH:37]=[C:36]([O:38][CH2:60][CH2:59][CH2:58][C:57]([O:56][CH2:49][C:50]2[CH:51]=[CH:52][CH:53]=[CH:54][CH:55]=2)=[O:62])[CH:35]=[C:34]([O:39][CH2:40][C:41]2[CH:42]=[CH:43][CH:44]=[CH:45][CH:46]=2)[CH:33]=1)([C:4]([CH3:5])([CH3:6])[CH3:7])([CH3:3])[CH3:2]