반응 #214844

ord-b3787531371f49e5a90121dfcb20b18e

반응 방정식

O=C(O)C[C@H](NC(=O)OCc1ccccc1)C(=O)O
N-benzyloxycarbonyl-L-aspartic acid
COC(=O)[C@@H](N)Cc1ccccc1
L-phenylalanine methyl ester
COC(=O)[C@H](Cc1ccccc1)NC(=O)[C@H](CC(=O)O)NC(=O)OCc1ccccc1
N-benzyloxycarbonyl-L-aspartyl-L-phenylalanine methyl ester
COC(=O)[C@@H](N)Cc1ccccc1
L-phenylalanine methyl ester
수율 95.5%

반응 조건

온도
38°CELSIUS
상세 조건
See reaction.notes.procedure_details.

후처리

  1. 1
    기타The precipitate was collected
  2. 2
    세척washed with water
  3. 3
    기타dried

실험 절차

A 267.2 mg (1 m mol) of N-benzyloxycarbonyl-L-aspartic acid and 537.6 mg (3 m mol) of L-phenylalanine methyl ester were dissolved in 5 ml of McIlvain's buffer solution (pH:7.0). The resulting solution was admixed with 100 mg of Thermoase and 100 mg of potato inhibitor and shaken at 38° C. for 20 hours. The precipitate was collected and washed with water and dried to obtain 580 mg of a crude crystalline addition compound of N-benzyloxycarbonyl-L-aspartyl-L-phenylalanine methyl ester and L-phenylalanine methyl ester (1:1) (melting point: 123° to 125° C.; Yield: 95.5% based on N-benzyloxycarbonyl-L-aspartic acid).

출처

DOI: 10.6084/m9.figshare.5104873.v1특허: US04256836uspto-grants-1981_03