Trifluoroacetic acid → 4-(2-N-benzyloxycarbonyl-L-valyloxyethoxy)-benzoic acid

HRID 1170646노트

반응식

HRID 1170646 반응식
[CH2:1]([O:8][C:9]([NH:11][C@H:12]([C:16]([O:18][CH2:19][CH2:20][O:21][C:22]1[CH:39]=[CH:38][C:25]([C:26]([O:28]CC2C=CC(OC)=CC=2)=[O:27])=[CH:24][CH:23]=1)=[O:17])[CH:13]([CH3:15])[CH3:14])=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.FC(F)(F)C(O)=O.ICC1C=C(OCCOC(=O)[C@H](C(C)C)NC(OCC2C=CC=CC=2)=O)C=CC=1C(O)=O>ClCCl>[CH2:1]([O:8][C:9]([NH:11][C@H:12]([C:16]([O:18][CH2:19][CH2:20][O:21][C:22]1[CH:39]=[CH:38][C:25]([C:26]([OH:28])=[O:27])=[CH:24][CH:23]=1)=[O:17])[CH:13]([CH3:15])[CH3:14])=[O:10])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

참가 물질

5

반응물 3

HCID 6422Trifluoroacetic acidHCID 23387399iodomethyl 4-(2-N-benzyloxycarbonyl-L-valyloxyethoxy)-benzoic acidHCID 233875454-methoxybenzyl 4(2-N-benzyloxycarbonyl-L-valyloxyethoxy)benzoate

생성물 1

HCID 233875344-(2-N-benzyloxycarbonyl-L-valyloxyethoxy)-benzoic acid

시약·촉매·용매 1

HCID 6344Dichloromethane용매

실험 절차

To a solution of 4-methoxybenzyl 4-(2-N-benzyloxycarbonyl-L-valyloxyethoxy)benzoate (10.2 g, 19.04 mmole) in dichloromethane (100 ml) was added trifluoroacetic acid (20 ml) and the mixture was stirred 3 hours at room temperature. The solution was evaporated under reduced pressure and co-evaporated two times with toluene. The product was isolated by silica gel column chromatography. Yield: 6.9 g=87%. The product may be activated and esterified direct to a drug or converted to iodomethyl 4-(2-N-benzyloxycarbonyl-L-valyloxyethoxy)-benzoic acid as described above, that is by treatment with a base, chloroiodomethane, separation and then treatment with NaI.

후처리

  1. customThe solution was evaporated under reduced pressure
  2. customThe product was isolated by silica gel column chromatography
  3. customthat is by treatment with a base, chloroiodomethane, separation

출처 및 근거

ORD 기록
ord-c1d81a7d25bb418eb2a0073b8754843b
출처 데이터셋
uspto-grants-2010_11
특허 번호
US07825238B2

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