Borohydride → HCID 58828971, compound

Reaction equation

[BH4-].[CH2:2]([C:9]1[N:10]([CH3:15])[C:11]([SH:14])=[N:12][N:13]=1)[CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH3:8].I[C:17]1[CH:36]=[CH:35][C:20]([CH2:21][NH:22][C:23]2[CH:28]=[CH:27][C:26]([CH2:29][C:30]([O:32][CH2:33][CH3:34])=[O:31])=[CH:25][CH:24]=2)=[C:19]([O:37][CH2:38][CH2:39][CH3:40])[CH:18]=1>O1CCCC1.C(O)C>[CH2:33]([O:32][C:30](=[O:31])[CH2:29][C:26]1[CH:27]=[CH:28][C:23]([NH:22][CH2:21][C:20]2[CH:35]=[CH:36][C:17]([S:14][C:11]3[N:10]([CH3:15])[C:9]([CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH3:8])=[N:13][N:12]=3)=[CH:18][C:19]=2[O:37][CH2:38][CH2:39][CH3:40])=[CH:24][CH:25]=1)[CH3:34]

Participants

Procedure

2.647 g (6.62 mmol, 3 eq) of resin-supported borohydride and 30 mg (0.06 mmol, 0.03 eq) of bis(bipyridine)dibromonickel (II) are added to a solution of 0.706 g (3.31 mmol, 1.5 eq) of 5-heptyl-4-methyl-4H-[1,2,4]-triazole-3-thiol in 10 ml of tetrahydrofuran/ethanol 5/5. To the suspension obtained there is added a solution of 100 mg (0.22 mmol, 1 eq) of ethyl [4-(4-iodo-2-propoxybenzylamino)phenyl]acetate in 10 ml of tetrahydrofuran/ethanol 5/5. The reaction mixture is stirred overnight under reflux. After returning to room temperature, the reaction medium is filtered, concentrated and then chromatographed on silica gel (heptane/ethyl acetate 40/60). After evaporation of the solvents, 0.750 g (63%) of the expected compound is recovered.