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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 725854Generated: November 1, 2026

Dicyclohexylcarbodiimide → tert-butyl (2RS,4RS,5SR)-4-acetyl-1-{2-[3-(3-methylphenyl)ureido]acetyl}-5-phenylpyrrolidine-2-carboxylate

https://huagongshe.com/reaction/725854

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDicyclohexylcarbodiimideHCID 10868—
Reactant2-{[(3-Methylphenyl)carbamoyl]amino}acetic acidHCID 14996960—
ReactantHCID 86751901HCID 86751901—
SolventAcetonitrileHCID 6342—
Producttert-butyl (2RS,4RS,5SR)-4-acetyl-1-{2-[3-(3-methylphenyl)ureido]acetyl}-5-phenylpyrrolidine-2-carboxylateHCID 8675190013.6%

Reaction Steps

The reaction is carried out in a way analogous to that described in Example 2B, but from 4.5 g of tert-butyl (2RS,4RS,5SR)-4-acetyl-5-phenylpyrrolidine-2-carboxylate, 3.2 g of 2-[3-(3-methylphenyl)ureido]acetic acid and 3.5 g of N,N'-dicyclohexylcarbodiimide in 50 cm3 of acetonitrile. After treatment, there is obtained 1 g of tert-butyl (2RS,4RS,5SR)-4-acetyl-1-{2-[3-(3-methylphenyl)ureido]acetyl}-5-phenylpyrrolidine-2-carboxylate, melting at 100° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05707991
Source datasetuspto-grants-1998_01
ORD IDord-39048050de854fb7a23f242e5ba18713
Source noteuspto-grants-1998_01