2,5-Dihydroxybenzoic acid → HCID 67675857, compound

HRID 1956989Notes

Reaction equation

HRID 1956989 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].[OH:30][C:31]1[CH:39]=[CH:38][C:37]([OH:40])=[CH:36][C:32]=1[C:33](O)=[O:34]>>[OH:30][C:31]1[CH:39]=[CH:38][C:37]([OH:40])=[CH:36][C:32]=1[C:33]([N:9]([CH3:10])[C@@H:8]([C:7]([NH:6][C@H:5]([C:4]([OH:3])=[O:29])[CH2:19][C:20]1[C:28]2[C:23](=[CH:24][CH:25]=[CH:26][CH:27]=2)[NH:22][CH:21]=1)=[O:18])[CH2:11][C:12]1[CH:13]=[CH:14][CH:15]=[CH:16][CH:17]=1)=[O:34]

Participants

3

Reactant 2

HCID 34692,5-Dihydroxybenzoic acidHCID 67674832HCID 67674832, compound

Product 1

HCID 67675857HCID 67675857, compound

Procedure

Coupling of N-methyl-(D)-phenylalanyl-(L)-tryptophan methyl ester hydrochloride (see example 1) with 2,5-dihydroxybenzoic acid according to example 12 followed by hydrolysis of the methyl ester moiety according to example 1 gives N-(2,5-dihydroxybenzoyl)-N-methyl-(D)-phenylalanyl-(L)-tryptophan; FAB-MS m/e 502 (M+H)+.

Sources & evidence

ORD record
ord-83cd655d006e49f5a4f8a321d0934da6
Source dataset
uspto-grants-1998_07
Patent number
US05780498

Reaction notes

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