Reaktion #341018

ord-12b523f31b0c4cec99210a9806187e8a

Reaktionsgleichung

O=Cc1cnc(NC(=O)N(C2CCCCC2)C2CCCCC2)s1
1,1-dicyclohexyl-3-(5-formyl-thiazol-2-yl)-urea
Cl.O=C(OCc1ccccc1)[C@H]1CCCN1
pyrrolidine-2(R)-carboxylic acid benzyl ester hydrochloride
CC(=O)O[BH-](OC(C)=O)OC(C)=O.[Na+]
sodium triacetoxyborohydride
→
O=C(OCc1ccccc1)[C@H]1CCCN1Cc1cnc(NC(=O)N(C2CCCCC2)C2CCCCC2)s1
desired product
Ausbeute 78.6%
O=C(OCc1ccccc1)[C@H]1CCCN1Cc1cnc(NC(=O)N(C2CCCCC2)C2CCCCC2)s1
1-[2-(3,3-Dicyclohexyl-ureido)-thiazol-5-ylmethyl]-pyrrolidine-2(R)-carboxylic acid benzyl ester
Ausbeute 78.6%

Edukte

O=Cc1cnc(NC(=O)N(C2CCCCC2)C2CCCCC2)s1
1,1-dicyclohexyl-3-(5-formyl-thiazol-2-yl)-urea
Cl.O=C(OCc1ccccc1)[C@H]1CCCN1
pyrrolidine-2(R)-carboxylic acid benzyl ester hydrochloride
CC(=O)O[BH-](OC(C)=O)OC(C)=O.[Na+]
sodium triacetoxyborohydride

Reagenzien

Keine

Reaktionsbedingungen

Detaillierte Bedingungen
See reaction.notes.procedure_details.

Aufarbeitung

  1. 1
    SonstigePrepared

Vorschrift

Prepared as described in general procedure (P) using 1,1-dicyclohexyl-3-(5-formyl-thiazol-2-yl)-urea (75 mg. 0.223 mmol), pyrrolidine-2(R)-carboxylic acid benzyl ester hydrochloride (73 mg, 0.31 mmol) and sodium triacetoxyborohydride (71 mg, 0.335 mmol) to afford 92 mg (78%) of the desired product after purification.

Quelle

DOI: 10.6084/m9.figshare.5104873.v1Patent: US07872139B2uspto-grants-2011_01