6-Chloropicolinic acid → HCID 86752917, compound
Reaction equation
Cl.C[O:3][C:4](=[O:29])[C@H:5]([CH2:19][C:20]1[C:28]2[C:23](=[CH:24][CH:25]=[CH:26][CH:27]=2)[NH:22][CH:21]=1)[NH:6][C:7](=[O:18])[C@@H:8]([CH2:11][C:12]1[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1)[NH:9][CH3:10].[Cl:30][C:31]1[N:36]=[C:35]([C:37]([OH:39])=O)[CH:34]=[CH:33][CH:32]=1>>[Cl:30][C:31]1[N:36]=[C:35]([C:37]([N:9]([CH3:10])[C@@H:8]([C:7]([NH:6][C@H:5]([C:4]([OH:29])=[O:3])[CH2:19][C:20]2[C:28]3[C:23](=[CH:24][CH:25]=[CH:26][CH:27]=3)[NH:22][CH:21]=2)=[O:18])[CH2:11][C:12]2[CH:13]=[CH:14][CH:15]=[CH:16][CH:17]=2)=[O:39])[CH:34]=[CH:33][CH:32]=1Participants
3
Procedure
Coupling of N-methyl-(D)-phenylalanyl-(L)-tryptophan methyl ester hydrochloride (see example 1) with 6-chloro-2-pyridinecarboxylic acid according to example 12 followed by hydrolysis of the methyl ester moiety according to example 1 gives N-(6-chloro-2-pyridylcarbonyl)-N-methyl-(D)-phenylalanyl-(L)-tryptophan; FAB-MS m/e 503 (M-H)-.
Sources & evidence
- ORD record
- ord-ad1ce038549c406498b8bb673eed76b3
- Source dataset
- uspto-grants-1998_07
- Patent number
- US05780498
Reaction notes
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