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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1957005Generated: October 25, 2026

Methyl tryptophanate hydrochloride → N-(3,5-dimethylbenzoyl)-N-methyl-O-methyl-(D)-tyrosyl-(L)-tryptophan

https://huagongshe.com/reaction/1957005

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethyl tryptophanate hydrochlorideHCID 2734891—
ReactantN-(3,5-dimethylbenzoyl)-N-methyl-(D)-tyrosyl-(L)-tryptophanHCID 67675232—
ProductN-(3,5-dimethylbenzoyl)-N-methyl-O-methyl-(D)-tyrosyl-(L)-tryptophanHCID 67674645—

Reaction Steps

Coupling of N-(3,5-dimethylbenzoyl)-N-methyl-O-methyl-(D)-tyrosine (prepared by O-methylation of N-(3,5-dimethylbenzoyl)-N-methyl-(D)-tyrosine (example 64)) with (L)-tryptophan methyl ester hydrochloride according to example 1 followed by hydrolysis of the methyl ester moiety according to example 12 gives N-(3,5-dimethylbenzoyl)-N-methyl-O-methyl-(D)-tyrosyl-(L)-tryptophan; FAB-MS m/e 528 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05780498
Source datasetuspto-grants-1998_07
ORD IDord-72ef96e7591149e7b1f9a21c90168308
Source noteuspto-grants-1998_07