Tetrahydrofuran → 1alpha-(tert-butyldimethylsilyloxy)-3beta-hydroxy-20(S)-(4-ethyl-4-hydroxy-2-hexynylthio)pregna-5,7,16-triene

HRID 1268506노트

반응식

HRID 1268506 반응식
[Si:1]([O:8][C@@H:9]1[C@@:37]2([CH3:38])[C:13](=[CH:14][CH:15]=[C:16]3[C@@H:36]2[CH2:35][CH2:34][C@@:33]2([CH3:39])[C@H:17]3[CH2:18][CH:19]=[C:20]2[C@@H:21]([S:23]C(OC2C=CC=CC=2)=O)[CH3:22])[CH2:12][C@@H:11]([OH:40])[CH2:10]1)([C:4]([CH3:7])([CH3:6])[CH3:5])([CH3:3])[CH3:2].Br[CH2:42][C:43]#[C:44][C:45]([CH2:49][CH3:50])([OH:48])[CH2:46][CH3:47].O1CCCC1.[OH-].[K+]>CO>[Si:1]([O:8][C@@H:9]1[C@@:37]2([CH3:38])[C:13](=[CH:14][CH:15]=[C:16]3[C@@H:36]2[CH2:35][CH2:34][C@@:33]2([CH3:39])[C@H:17]3[CH2:18][CH:19]=[C:20]2[C@@H:21]([S:23][CH2:42][C:43]#[C:44][C:45]([CH2:49][CH3:50])([OH:48])[CH2:46][CH3:47])[CH3:22])[CH2:12][C@@H:11]([OH:40])[CH2:10]1)([C:4]([CH3:7])([CH3:5])[CH3:6])([CH3:3])[CH3:2]

참가 물질

6

반응물 4

HCID 8028TetrahydrofuranHCID 14797Potassium HydroxideHCID 12019512HCID 12019512, 화합물HCID 220276876-Bromo-3-ethyl-4-hexyn-3-ol

생성물 1

HCID 120200451alpha-(tert-butyldimethylsilyloxy)-3beta-hydroxy-20(S)-(4-ethyl-4-hydroxy-2-hexynylthio)pregna-5,7,16-triene수율 63%

시약·촉매·용매 1

HCID 887Methanol용매

실험 절차

Under the same conditions as in Example 3, 1α-(tert-butyldimethylsilyloxy)-3β-hydroxy-20(S)-phenoxycarbonylthiopregna-5,7,16-triene (60.8 mg, 0.105 mmol), 6-bromo-3-ethyl-4-hexyn-3-ol (108 mg, 0.525 mmol), tetrahydrofuran (1 ml) and 1M KOH solution in methanol (1 ml) were reacted and worked up, and then the residue was purified by preparative thin layer chromatography (0.5 mm×2, dichloromethane ethyl acetate=5:1, developed twice) to give the title compound as a colorless oil (38.4 mg, 63%).

후처리

  1. customthe residue was purified by preparative thin layer chromatography (0.5 mm×2, dichloromethane ethyl acetate=5:1

출처 및 근거

ORD 기록
ord-62e9043e560d4ce2a886cde0b165675c
출처 데이터셋
uspto-grants-2003_04
특허 번호
US06555699B2

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