3-Amino-5-nitrobenzoic acid → 3-[6-(1-t-Butoxyformamido)hexanamido]-5-nitrobenzoic acid
Reaction equation
[C:1]([O:5][C:6]([NH:8][CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][C:14]([OH:16])=O)=[O:7])([CH3:4])([CH3:3])[CH3:2].[NH2:17][C:18]1[CH:19]=[C:20]([CH:24]=[C:25]([N+:27]([O-:29])=[O:28])[CH:26]=1)[C:21]([OH:23])=[O:22]>>[C:1]([O:5][C:6]([NH:8][CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][C:14]([NH:17][C:18]1[CH:19]=[C:20]([CH:24]=[C:25]([N+:27]([O-:29])=[O:28])[CH:26]=1)[C:21]([OH:23])=[O:22])=[O:16])=[O:7])([CH3:2])([CH3:3])[CH3:4]Participants
3
Procedure
For the preparation of the starting material, MS: 367 (M-BOC+H), 6-(1-t-butoxyformamido)hexanoic acid and 3-amino-5-nitrobenzoic acid are reacted to give 3-[6-(1-t-butoxyformamido)hexanamido]-5-nitrobenzoic acid, MS: 396 (2, M+H), and the latter is reacted with β-alanine methyl ester to give N-[3-[6-(1-t-butoxyformamido)hexanamido]-5-nitrobenzoyl]-β-alanine methyl ester, MS: 381 (100, M-Boc+H). This is then saponified in methanolic sodium hydroxide solution.
Workup
- customFor the preparation of the starting material, MS
Sources & evidence
- ORD record
- ord-29908c88e5f44a6a911e9fcc30c29146
- Source dataset
- uspto-grants-1991_08
- Patent number
- US05039805
Reaction notes
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