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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1464237Generated: October 30, 2026

L-Tyrosine ethyl ester → HCID 178472556, compound

https://huagongshe.com/reaction/1464237

Reaction equation

Participants

RoleNameHCIDCharge
ReactantL-Tyrosine ethyl esterHCID 70364—
ReactantHCID 178472567HCID 178472567—
ProductHCID 178472556HCID 17847255675%

Reaction Steps

In a batch procedure (300 l), Mal-Tyr-OEt (0.25M) and Arg-OEt (0.25M) are reacted with α-chymotrypsin (0.025 mg/ml) at pH 9.5 and 25° C. After 2 hours, filtration of the precipitate and washing with water result in 26.0 kg of Mal-Tyr-Arg-OEt (75% of theoretical yield) with an HPLC purity greater than 97%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05304470
Source datasetuspto-grants-1994_04
ORD IDord-ee7ab821a415472382e7352f6b8b4381
Source noteuspto-grants-1994_04