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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1086115Generated: October 30, 2026

Ethylmorpholine → Z-Pro-Val-OtBu

https://huagongshe.com/reaction/1086115

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthylmorpholineHCID 7525—
ReactantDicyclohexylcarbodiimideHCID 10868—
Reactant1-HydroxybenzotriazoleHCID 75771—
ReactantBenzyloxycarbonyl-L-prolineHCID 101987—
Reactanttert-butyl (2S)-2-amino-3-methylbutanoate hydrochlorideHCID 12490702—
SolventDimethylformamideHCID 6228—
ProductZ-Pro-Val-OtBuHCID 12286264—

Reaction Steps

1.3 ml of N-ethylmorpholine and 2.2 g of DCC are added, at 0° C., to a solution of 2.49 g of Z-Pro-OH, 2.1 g of H-Val-OtBu.HCl and 1.35 g of HOBt in 20 ml of dimethylformamide. The subsequent procedure is as in Example 8a. The residue is triturated with petroleum ether, filtered off with suction and dried.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05011825
Source datasetuspto-grants-1991_04
ORD IDord-318aacdf3a8848eca16a0bc42725c105
Source noteuspto-grants-1991_04