Tributylphosphine → Ethyl 7-(2-{[di-tert-butyl(phenyl)silyl]oxy}-1-methylethoxy)-5-[4-(methylsulfonyl)phenoxy]-1H-indole-2-carboxylate

HRID 1188888노트

반응식

HRID 1188888 반응식
[OH:1][C:2]1[CH:3]=[C:4]([O:16][C:17]2[CH:22]=[CH:21][C:20]([S:23]([CH3:26])(=[O:25])=[O:24])=[CH:19][CH:18]=2)[CH:5]=[C:6]2[C:10]=1[NH:9][C:8]([C:11]([O:13][CH2:14][CH3:15])=[O:12])=[CH:7]2.[C:27]([Si:31]([C:43]([CH3:46])([CH3:45])[CH3:44])([C:37]1[CH:42]=[CH:41][CH:40]=[CH:39][CH:38]=1)[O:32][CH2:33][CH:34](O)[CH3:35])([CH3:30])([CH3:29])[CH3:28].N(C(N1CCCCC1)=O)=NC(N1CCCCC1)=O.C(P(CCCC)CCCC)CCC>O1CCCC1>[C:43]([Si:31]([C:27]([CH3:28])([CH3:30])[CH3:29])([C:37]1[CH:38]=[CH:39][CH:40]=[CH:41][CH:42]=1)[O:32][CH2:33][CH:34]([CH3:35])[O:1][C:2]1[CH:3]=[C:4]([O:16][C:17]2[CH:22]=[CH:21][C:20]([S:23]([CH3:26])(=[O:25])=[O:24])=[CH:19][CH:18]=2)[CH:5]=[C:6]2[C:10]=1[NH:9][C:8]([C:11]([O:13][CH2:14][CH3:15])=[O:12])=[CH:7]2)([CH3:44])([CH3:45])[CH3:46]

참가 물질

6

반응물 4

HCID 13831TributylphosphineHCID 730421,1'-(Azodicarbonyl)dipiperidineHCID 66726144Ethyl 7-hydroxy-5-[4-(methylsulfonyl)phenoxy]-1H-indole-2-carboxylateHCID 668862121-{[Di-tert-butyl(phenyl)silyl]oxy}propan-2-ol

생성물 1

HCID 67118494Ethyl 7-(2-{[di-tert-butyl(phenyl)silyl]oxy}-1-methylethoxy)-5-[4-(methylsulfonyl)phenoxy]-1H-indole-2-carboxylate수율 60.1%

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매

반응 조건

온도
50 °C

실험 절차

A mixture of ethyl 7-hydroxy-5-[4-(methylsulfonyl)phenoxy]-1H-indole-2-carboxylate (2.3 g), 1-{[di-tert-butyl(phenyl)silyl]oxy}propan-2-ol (3.9 g), 1,1′-(azodicarbonyl)dipiperidine (3.1 g), tributylphosphine (3.1 mL) and tetrahydrofuran (20 mL) was stirred at 50° C. for 18 hr. The reaction solution was allowed to cool to room temperature, and the precipitated white solid was filtered off. The filtrate was concentrated, and the residue was subjected to silica gel column chromatography (ethyl acetate:hexane=0:100 to 30:70, volume ratio) to give the title compound (2.4 g, yield 57%) as an orange oil. MS 672 (MH+).

후처리

  1. temperatureto cool to room temperature
  2. filtrationthe precipitated white solid was filtered off
  3. concentrationThe filtrate was concentrated

출처 및 근거

ORD 기록
ord-d2e18b7c6f984c28a0feffc05293c6e5
출처 데이터셋
uspto-grants-2014_03
특허 번호
US08673942B2

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