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Hydroxyphenylacetic acid → Methyl 4-(7,12-dihydroxy-3-{2-[2-(4-hydroxyphenyl)acetylamino]ethoxy}-10,13-dimethylhexadecahydrocyclopenta[a]phenanthren-17-yl)pentanoate

HRID 1280866
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HRID 1280866 반응식
[NH2:1][CH2:2][CH2:3][O:4][CH:5]1[CH2:21][CH:20]2[C:8]([CH3:33])([CH:9]3[CH:17]([CH:18]([OH:22])[CH2:19]2)[CH:16]2[C:12]([CH3:31])([CH:13]([CH:23]([CH3:30])[CH2:24][CH2:25][C:26]([O:28][CH3:29])=[O:27])[CH2:14][CH2:15]2)[CH:11]([OH:32])[CH2:10]3)[CH2:7][CH2:6]1.[OH:34][C:35]1[CH:40]=[CH:39][C:38]([CH2:41][C:42](O)=[O:43])=[CH:37][CH:36]=1.C1C=CC2N(O)N=NC=2C=1.C1CCC(N=C=NC2CCCCC2)CC1>C1COCC1>[OH:22][CH:18]1[CH:17]2[CH:9]([CH2:10][CH:11]([OH:32])[C:12]3([CH3:31])[CH:16]2[CH2:15][CH2:14][CH:13]3[CH:23]([CH3:30])[CH2:24][CH2:25][C:26]([O:28][CH3:29])=[O:27])[C:8]2([CH3:33])[CH:20]([CH2:21][CH:5]([O:4][CH2:3][CH2:2][NH:1][C:42](=[O:43])[CH2:41][C:38]3[CH:39]=[CH:40][C:35]([OH:34])=[CH:36][CH:37]=3)[CH2:6][CH2:7]2)[CH2:19]1
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6

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HCID 127Hydroxyphenylacetic acidHCID 10868DicyclohexylcarbodiimideHCID 757711-HydroxybenzotriazoleHCID 18425132Methyl 4-[3-(2-aminoethoxy)-7,12-dihydroxy-10,13-dimethylhexadecahydrocyclopenta[a]phenanthren-17-yl]pentanoate

생성물 1

HCID 69725262Methyl 4-(7,12-dihydroxy-3-{2-[2-(4-hydroxyphenyl)acetylamino]ethoxy}-10,13-dimethylhexadecahydrocyclopenta[a]phenanthren-17-yl)pentanoate
수율 73.2%

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매2회

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온도
0 °C

실험 절차

700 mg of methyl 4-[3-(2-aminoethoxy)-7,12-dihydroxy-10,13-dimethylhexadecahydrocyclopenta[a]phenanthren-17-yl]pentanoate, 230 mg of 4-hydroxyphenylacetic acid and 305 mg of HOBT are dissolved in 10 ml of THF and a solution of 342 mg of DCC in 10 ml of THF is injected at 0° C. The mixture is stirred at 0° C. for one hour and then at RT for 25 hours. The precipitate is filtered off, the filtrate is diluted with 150 ml of a 10% aqueous NaHCO3 solution and the mixture is extracted three times with 100 ml of EA each time. The extract is dried over Na2SO4 and the solvent is removed in vacuo. Chromatography on silica gel using EA/MeOH 10:1 yields 660 mg of a colorless oil.

후처리

  1. customis injected at 0° C
  2. waitat RT for 25 hours
  3. filtrationThe precipitate is filtered off
  4. additionthe filtrate is diluted with 150 ml of a 10% aqueous NaHCO3 solution
  5. extractionthe mixture is extracted three times with 100 ml of EA each time
  6. dry with materialThe extract is dried over Na2SO4
  7. customthe solvent is removed in vacuo

출처 및 근거

ORD 기록
ord-a459cc98f0a942af8e6ca85bb0301380
출처 데이터셋
uspto-grants-2002_09
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US06451781B1

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