2-Naphthoyl chloride → L-Proline, 1-(3-((4-amino-2-((2-naphthalenylcarbonyl)amino)-1,4-dioxobutyl)amino)-2-hydroxy-4-phenylbutyl)-, 1,1-dimethylethyl ester, (2R-(2R*,3S*(S*)))-

HRID 267103

Reaktionsgleichung

Reaktionsgleichung von HRID 267103
[C:1]([O:5][C:6](=[O:32])[C@@H:7]1[CH2:11][CH2:10][CH2:9][N:8]1[CH2:12][C@@H:13]([OH:31])[C@@H:14]([NH:22][C:23](=[O:30])[C@H:24]([CH2:26][C:27](=[O:29])[NH2:28])[NH2:25])[CH2:15][C:16]1[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=1)([CH3:4])([CH3:3])[CH3:2].[CH:33]1[C:42]2[C:37](=[CH:38][CH:39]=[CH:40][CH:41]=2)[CH:36]=[CH:35][C:34]=1[C:43](Cl)=[O:44].C(N(C(C)C)CC)(C)C>ClCCl>[C:1]([O:5][C:6](=[O:32])[C@@H:7]1[CH2:11][CH2:10][CH2:9][N:8]1[CH2:12][C@@H:13]([OH:31])[C@@H:14]([NH:22][C:23](=[O:30])[C@H:24]([CH2:26][C:27](=[O:29])[NH2:28])[NH:25][C:43]([C:34]1[CH:35]=[CH:36][C:37]2[C:42](=[CH:41][CH:40]=[CH:39][CH:38]=2)[CH:33]=1)=[O:44])[CH2:15][C:16]1[CH:17]=[CH:18][CH:19]=[CH:20][CH:21]=1)([CH3:4])([CH3:2])[CH3:3]

Komponenten

5

Edukt 3

HCID 752462-Naphthoyl chlorideHCID 81531DiisopropylethylamineHCID 70041604N-[3(S)-[[L-asparaginyl]amino]-2(R)-hydroxy-4-phenylbutyl]-L-proline tert.butyl ester

Produkt 1

HCID 451725L-Proline, 1-(3-((4-amino-2-((2-naphthalenylcarbonyl)amino)-1,4-dioxobutyl)amino)-2-hydroxy-4-phenylbutyl)-, 1,1-dimethylethyl ester, (2R-(2R*,3S*(S*)))-Ausbeute 64,3 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

A solution of 249 mg of N-[3(S)-[[L-asparaginyl]amino]-2(R)-hydroxy-4-phenylbutyl]-L-proline tert.butyl ester, 106 mg of 2-naphthoyl chloride and 72 mg of diisopropylethylamine in 10 ml of dry dichloromethane was stirred at 20° C. for 20 hours. The gelatinous reaction mixture was partitioned between dichloromethane and water. The organic phase was evaporated and the resulting oil was crystallized from ethyl acetate/n-hexane to give 215 mg of N-[2(R)-hydroxy-3(S)-[[N-(2-naphthoyl)-L-asparaginyl]amino]-4-phenylbutyl]-L-proline tert.butyl ester, as a white solid; MS: m/e 603 [M+H]+.

Aufarbeitung

  1. customThe gelatinous reaction mixture was partitioned between dichloromethane and water
  2. customThe organic phase was evaporated
  3. customthe resulting oil was crystallized from ethyl acetate/n-hexane

Quellen und Nachweise

ORD-Eintrag
ord-60c8eaf15b244a04afe6d2e016721315
Quelldatensatz
uspto-grants-1997_07
Patentnummer
US05652369

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