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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 583009Generated: October 26, 2026

N-(methoxycarbonyl)-4-keto-D-proline methyl ester → N-(methoxycarbonyl)-cis-4-hydroxy-D-proline methyl ester

https://huagongshe.com/reaction/583009

Reaction equation

Participants

RoleNameHCIDCharge
ReactantN-(methoxycarbonyl)-4-keto-D-proline methyl esterHCID 11275680—
ReactantHCID 178418361HCID 178418361—
CatalystPlatinumHCID 23939—
SolventEthyl AcetateHCID 8857—
ProductN-(methoxycarbonyl)-cis-4-hydroxy-D-proline methyl esterHCID 21310449—
ProductN-(methoxycarbonyl)-trans-4-hydroxy-D-proline methyl esterHCID 21310450—

Reaction Steps

A 5.0 mL solution of 0.125 g of N-(methoxycarbonyl)-4-keto-D-proline methyl ester in ethyl acetate was mixed with 12.5 mg of 5% platinum on alumina under 70 psig of hydrogen at 25° C. After 18 h, the yields of N-(methoxycarbonyl)-cis-4-hydroxy-D-proline methyl ester and N-(methoxycarbonyl)-trans-4-hydroxy-D-proline methyl ester were 98.7% and 1.3%, respectively, with no N-(methoxycarbonyl)-4-keto-D-proline methyl ester remaining.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05928933
Source datasetuspto-grants-1999_07
ORD IDord-b27de7f916044eaf81ca0ee908401ded
Source noteuspto-grants-1999_07