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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 894890Generated: October 25, 2026

L-Proline 1,1-dimethylethyl ester → 5-Amino-2-mercaptomethylpentanoyl-L-leucine

https://huagongshe.com/reaction/894890

Reaction equation

Participants

RoleNameHCIDCharge
ReactantL-Proline 1,1-dimethylethyl esterHCID 6453108—
Reactanttert-butyl (2S)-2-amino-4-methylpentanoateHCID 7022311—
ReactantN-[2-acetylthiomethyl-5-(p-methoxybenzyloxycarbonylamino)pentanoyl]-L-Leucine tert-butyl esterHCID 53738373—
ReactantN-[2-acetylthiomethyl-5-aminopentanoyl]-L-leucineHCID 53939363—
ReactantN-(5-amino-2-mercaptomethylpentanoyl)-L-leucineHCID 54226392—
Product5-Amino-2-mercaptomethylpentanoyl-L-leucineHCID 86737957—

Reaction Steps

By substituting L-leucine tert-butyl ester for the proline tert-butyl ester in the procedure of Example 13, and then submitting the product to the procedure of Examples 14 and 15, N-[2-acetylthiomethyl-5-(p-methoxybenzyloxycarbonylamino)pentanoyl]-L-Leucine tert-butyl ester, N-[2-acetylthiomethyl-5-aminopentanoyl]-L-leucine and N-(5-amino-2-mercaptomethylpentanoyl)-L-leucine are obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04284779
Source datasetuspto-grants-1981_08
ORD IDord-bdd9e1d42a4541be81b76a1a6f901883
Source noteuspto-grants-1981_08