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Imidazole → 17-Ethyl-1-hydroxy-12-[2'-(4"(tert-butyldimethylsiloxy)-3"-hydroxycyclohexyl)-1'-methylvinyl]-23,25-dimethoxy-13,19,21,27-tetramethyl-11,28-dioxa-4-azatricyclo[22.3.1.04,9]octacos-18-ene-2,3,10,16-tetraone

HRID 1079256
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HRID 1079256 반응식
[CH2:1]([CH:3]1[CH:29]=[C:28]([CH3:30])[CH2:27][CH:26]([CH3:31])[CH2:25][CH:24]([O:32][CH3:33])[CH:23]2[O:34][C:19]([OH:38])([CH:20]([CH3:37])[CH2:21][CH:22]2[O:35][CH3:36])[C:18](=[O:39])[C:17](=[O:40])[N:16]2[CH:11]([CH2:12][CH2:13][CH2:14][CH2:15]2)[C:10](=[O:41])[O:9][CH:8]([C:42]([CH3:54])=[CH:43][CH:44]2[CH2:49][CH2:48][CH:47]([O:50]O)[CH:46]([O:52]O)[CH2:45]2)[CH:7]([CH3:55])[CH2:6][CH2:5][C:4]1=[O:56])[CH3:2].N1C=CN=C1.[C:62]([Si:66](Cl)([CH3:68])[CH3:67])([CH3:65])([CH3:64])[CH3:63]>C(Cl)Cl.C(OCC)(=O)C>[CH2:1]([CH:3]1[CH:29]=[C:28]([CH3:30])[CH2:27][CH:26]([CH3:31])[CH2:25][CH:24]([O:32][CH3:33])[CH:23]2[O:34][C:19]([OH:38])([CH:20]([CH3:37])[CH2:21][CH:22]2[O:35][CH3:36])[C:18](=[O:39])[C:17](=[O:40])[N:16]2[CH:11]([CH2:12][CH2:13][CH2:14][CH2:15]2)[C:10](=[O:41])[O:9][CH:8]([C:42]([CH3:54])=[CH:43][CH:44]2[CH2:49][CH2:48][CH:47]([O:50][Si:66]([C:62]([CH3:65])([CH3:64])[CH3:63])([CH3:68])[CH3:67])[CH:46]([OH:52])[CH2:45]2)[CH:7]([CH3:55])[CH2:6][CH2:5][C:4]1=[O:56])[CH3:2]
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

6

반응물 3

HCID 795ImidazoleHCID 28928tert-Butyldimethylsilyl chlorideHCID 8674680417-Ethyl-1-hydroxy-12-[2'-(4",3"-dihydroxyoxycyclohexyl)-1'-methylvinyl]-23,25-dimethoxy-13,19,21,27-tetramethyl-11,28-dioxa-4-azatricyclo-[22.3.1.04,9]octacos-18-ene-2,3,10,16-tetraone

생성물 1

HCID 5701447417-Ethyl-1-hydroxy-12-[2'-(4"(tert-butyldimethylsiloxy)-3"-hydroxycyclohexyl)-1'-methylvinyl]-23,25-dimethoxy-13,19,21,27-tetramethyl-11,28-dioxa-4-azatricyclo[22.3.1.04,9]octacos-18-ene-2,3,10,16-tetraone
수율 28.3%

시약·촉매·용매 2

HCID 6344Dichloromethane용매HCID 8857Ethyl Acetate용매

실험 절차

To a solution of 17-ethyl-1-hydroxy-12-[2'-(3", 4"-dihydroxycyclohexyl)-1'-methylvinyl]-23,25-dimethoxy- 13,19,21,27-tetramethyl-11,28-dioxa-4-azatricyclo[22.3.1.04,9 ]octacos-18-ene-2,3,10,16-tetraone (Example 2, 3.01 g) in dry methylene chloride (70 ml) was added an excess of imidazole (809 mg) followed by tertbutyldimethylsilyl chloride (716 mg). After 3 days of stirring at room temperature, the mixture was diluted with ethyl acetate which in turn was washed with 1N HCl, saturated sodium bicarbonate and brine, dried over magnesium sulfate and purified by flash chromatography (ethyl acetate:hexane (1:3)) to give the title compound (941 mg). 1H NMR consistent with the desired structure.

후처리

  1. washwas washed with 1N HCl, saturated sodium bicarbonate and brine
  2. dry with materialdried over magnesium sulfate
  3. custompurified by flash chromatography (ethyl acetate:hexane (1:3))

출처 및 근거

ORD 기록
ord-925105477b5c449c8656fbc76763357b
출처 데이터셋
uspto-grants-1996_08
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US05550233

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