2-Nitrobenzoic acid → N-[[1-[(4-methoxyphenyl)methyl]cyclopentyl]carbonyl]-4-[[(2-nitrophenyl)carbonyl]amino]-L-phenylalanine
Reaktionsgleichung
C[O:2][C:3](=[O:30])[C@H:4]([CH2:22][C:23]1[CH:28]=[CH:27][C:26]([NH2:29])=[CH:25][CH:24]=1)[NH:5][C:6]([C:8]1([CH2:13][C:14]2[CH:19]=[CH:18][C:17]([O:20][CH3:21])=[CH:16][CH:15]=2)[CH2:12][CH2:11][CH2:10][CH2:9]1)=[O:7].[N+:31]([C:34]1[CH:42]=[CH:41][CH:40]=[CH:39][C:35]=1[C:36](O)=[O:37])([O-:33])=[O:32]>>[CH3:21][O:20][C:17]1[CH:16]=[CH:15][C:14]([CH2:13][C:8]2([C:6]([NH:5][C@H:4]([C:3]([OH:2])=[O:30])[CH2:22][C:23]3[CH:24]=[CH:25][C:26]([NH:29][C:36]([C:35]4[CH:39]=[CH:40][CH:41]=[CH:42][C:34]=4[N+:31]([O-:33])=[O:32])=[O:37])=[CH:27][CH:28]=3)=[O:7])[CH2:9][CH2:10][CH2:11][CH2:12]2)=[CH:19][CH:18]=1Komponenten
3
Versuchsvorschrift
4-Amino-N-[[1-[(4-methoxyphenyl)methyl]cyclopentyl]carbonyl]-L-phenylalanine methyl ester (32.3 mg, 0.079 mmol) and 2-nitrobenzoic acid (17 mg, 0.10 mmol) were reacted as described in example 40 to give 22 mg of N-[[1-[(4-methoxyphenyl)methyl]cyclopentyl]carbonyl]-4-[[(2-nitrophenyl)carbonyl]amino]-L-phenylalanine, HR—FAB—MS: obs. mass 546.2235. Calcd. mass 546.2240 (M+H).