Sodium triacetoxyborohydride → 1,1-Dicyclohexyl-3-[5-(4-ethanesulfonyl-1-piperazinyl methyl)-thiazol-2-yl]-urea
Reaktionsgleichung
[CH:1]1([N:7]([CH:18]2[CH2:23][CH2:22][CH2:21][CH2:20][CH2:19]2)[C:8]([NH:10][C:11]2[S:12][C:13]([CH:16]=O)=[CH:14][N:15]=2)=[O:9])[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1.Cl.[CH2:25]([S:27]([N:30]1[CH2:35][CH2:34][NH:33][CH2:32][CH2:31]1)(=[O:29])=[O:28])[CH3:26].C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+]>>[CH:1]1([N:7]([CH:18]2[CH2:23][CH2:22][CH2:21][CH2:20][CH2:19]2)[C:8]([NH:10][C:11]2[S:12][C:13]([CH2:16][N:33]3[CH2:32][CH2:31][N:30]([S:27]([CH2:25][CH3:26])(=[O:28])=[O:29])[CH2:35][CH2:34]3)=[CH:14][N:15]=2)=[O:9])[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1Komponenten
4
Versuchsvorschrift
Prepared as described in general procedure (P) using 1,1-dicyclohexyl-3-(5-formyl-thiazol-2-yl)-urea (100 mg, 0.30 mmol), ethanesulfonyl-piperazine hydrochloride (128 mg, 0.60 mmol) and sodium triacetoxyborohydride (83 mg, 0.39 mmol) to afford 66 mg (44%) of the desired product after purification.