p-Toluenesulfonic acid → 2-{1 (S)-tert-butoxycarbonylamino-3(S)-isopropyl-4-[4-methoxy-3-(3-methoxypropyloxy)-phenyl]-butyl}-4(R)-methyl-tetrahydrofuran-5-one

HRID 744829노트

반응식

HRID 744829 반응식
C1(C)C=CC(S(O)(=O)=O)=CC=1.C(N[C:17](=[O:52])[C@H:18]([CH3:51])[CH2:19][C@H:20]([OH:50])[C@@H:21]([NH:42][C:43]([O:45][C:46]([CH3:49])([CH3:48])[CH3:47])=[O:44])[CH2:22][C@@H:23]([CH:39]([CH3:41])[CH3:40])[CH2:24][C:25]1[CH:30]=[CH:29][C:28]([O:31][CH3:32])=[C:27]([O:33][CH2:34][CH2:35][CH2:36][O:37][CH3:38])[CH:26]=1)CCC>C(Cl)(Cl)Cl>[C:46]([O:45][C:43]([NH:42][C@H:21]([CH:20]1[CH2:19][C@@H:18]([CH3:51])[C:17](=[O:52])[O:50]1)[CH2:22][C@@H:23]([CH:39]([CH3:40])[CH3:41])[CH2:24][C:25]1[CH:30]=[CH:29][C:28]([O:31][CH3:32])=[C:27]([O:33][CH2:34][CH2:35][CH2:36][O:37][CH3:38])[CH:26]=1)=[O:44])([CH3:49])([CH3:48])[CH3:47]

참가 물질

4

반응물 2

HCID 6101p-Toluenesulfonic acidHCID 236251841,1-Dimethylethyl N-((1S,2S,4R)-5-(butylamino)-2-hydroxy-1-((2S)-2-((4-methoxy-3-(3-methoxypropoxy)phenyl)methyl)-3-methylbutyl)-4-methyl-5-oxopentyl)carbamate

생성물 1

HCID 228657322-{1 (S)-tert-butoxycarbonylamino-3(S)-isopropyl-4-[4-methoxy-3-(3-methoxypropyloxy)-phenyl]-butyl}-4(R)-methyl-tetrahydrofuran-5-one

시약·촉매·용매 1

HCID 6212Chloroform용매

실험 절차

2.02 g of p-toluenesulfonic acid (monohydrate) are added to 5.6 g of 5(S)-tert-butoxycarbonylamino-4(S)-hydroxy-7(S)-isopropyl-2(R)-methyl-8-[4-methoxy-3-(3-methoxy-propyloxy)-phenyl]-octanoic acid (N-butyl)-amide (Example 32) in 240 ml of chloroform at room temperature and the mixture is stirred at room temperature for a further 18 hours. The reaction mixture is concentrated by evaporation and the residue is partitioned between diethyl ether and 0.1N hydrochloric acid. The organic phases are concentrated by evaporation and the title compound is obtained from the residue after FC (160 g of silica gel, eluant: ethyl acetate/hexane 1:1): Rf (ethyl acetate/hexane=2:1)=0.47; m.p. 86°-87° C.

후처리

  1. concentrationThe reaction mixture is concentrated by evaporation
  2. customthe residue is partitioned between diethyl ether and 0.1N hydrochloric acid
  3. concentrationThe organic phases are concentrated by evaporation

출처 및 근거

ORD 기록
ord-7279caf1803e45b5911fad61f0e67347
출처 데이터셋
uspto-grants-1996_09
특허 번호
US05559111

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