反应详情

According to the procedure of Example 1, Step E above, 46 mg (0.080 mmole) of (S)-1-[N-(3,5-dichlorophenyl)-N-phenylcarbamoyl]-4-(N,N-di-n-pentylcarbamoyl)piperazine-2-carboxylic acid, 12 mg (0.088 mole) of HOBt, 21 mg (0.112 mmole) of EDAC, and 31 mg (0.16 mmole) of N-(2-methoxybenzyl)-N-methylethylenediamine (from Example 1, Step E b) above) after purification by flash chromatography on 16 g of silica gel eluting with 100:5:CH2Cl2 :methanol: provided 54 mg (90%) of an oil.

1. customafter purification by flash chromatography on 16 g of silica gel eluting with 100:5