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Tetrabutylammonium Fluoride → 1alpha,3beta-dihydroxy-20(R)-{(Z)-(4-ethyl-4-hydroxy-2-hexenyloxy)}pregna-5,7,16-triene

HRID 2304227
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HRID 2304227 반응식
[Si]([O:8][C@@H:9]1[C@@:44]2([CH3:45])[C:13](=[CH:14][CH:15]=[C:16]3[C@@H:43]2[CH2:42][CH2:41][C@@:40]2([CH3:46])[C@H:17]3[CH2:18][CH:19]=[C:20]2[C@H:21]([O:23][CH2:24]/[CH:25]=[CH:26]\[C:27]([CH2:38][CH3:39])([O:30][Si](CC)(CC)CC)[CH2:28][CH3:29])[CH3:22])[CH2:12][C@@H:11]([O:47][Si](C(C)(C)C)(C)C)[CH2:10]1)(C(C)(C)C)(C)C.[F-].C([N+](CCCC)(CCCC)CCCC)CCC>O1CCCC1>[OH:8][C@@H:9]1[C@@:44]2([CH3:45])[C:13](=[CH:14][CH:15]=[C:16]3[C@@H:43]2[CH2:42][CH2:41][C@@:40]2([CH3:46])[C@H:17]3[CH2:18][CH:19]=[C:20]2[C@H:21]([O:23][CH2:24]/[CH:25]=[CH:26]\[C:27]([CH2:38][CH3:39])([OH:30])[CH2:28][CH3:29])[CH3:22])[CH2:12][C@@H:11]([OH:47])[CH2:10]1
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참가 물질

4

반응물 2

HCID 2724141Tetrabutylammonium FluorideHCID 700083741alpha,3beta-bis(tert-butyldimethylsilyloxy)-20(R)-{(Z)-(4-ethyl-4-triethylsilyloxy-2-hexenyloxy)}pregna-5,7,16-triene

생성물 1

HCID 700083821alpha,3beta-dihydroxy-20(R)-{(Z)-(4-ethyl-4-hydroxy-2-hexenyloxy)}pregna-5,7,16-triene수율 98%

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매2회

실험 절차

By the same procedure as in Example 9, 1α,3β-bis(tert-butyldimethylsilyloxy)-20(R)-{(Z)-(4-ethyl-4-triethylsilyloxy-2-hexenyloxy)}pregna-5,7,16-triene (82.0 mg, 0.103 mmol), tetrahydrofuran (3 ml) and 1M tetra-n-butylammonium fluoride solution in tetrahydrofuran (2 ml) were reacted (heating under reflux for 5.5 hours) and worked up, and then the residue was purified by preparative thin layer chromatography (0.5 mm×1, dichloromethane:ethyl acetate ethanol=20:80:1, developed once) to give the title compound as a white solid (46.1 mg, 98%).

후처리

  1. temperature(heating under reflux for 5.5 hours)
  2. customthe residue was purified by preparative thin layer chromatography (0.5 mm×1, dichloromethane

출처 및 근거

ORD 기록
ord-b52c56dde0d949adbac6865e0b723ef9
출처 데이터셋
uspto-grants-2002_08
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US06433200B1

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