Triethylamine → 4-{3-(S)-[(4-(6-Nitro-2-chlorophenoxy)benzenesulfonyl)amino]-2-oxopyrrolidin-1-ylmethyl}thiophene-2-carbononitrile

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Reaction Steps

4-{3-(S)-[(4-(6-Nitro-2-chlorophenoxy)benzenesulfonyl)amino]-2-oxopyrrolidin-1-ylmethyl}thiophene-2-carbononitrile is prepared as described in EXAMPLE 125, Part C from of 4-(3-Amino-2-oxopyrrolidine-1-ylmethyl)thiophene-2-carbonitrile hydrochloride (0.36 g, 1.4 mmol), and 4-(6-Nitro-2-chlorophenoxy)-benzenesulfonyl chloride (0.63 g, 1.8 mmol) and triethyl amine (0.57 g, 5.7 mmol). After 18 hours, the solution is diluted with CH2Cl2 and 0.5 N HCl. The layers are separated; the organic layer is dried over NA2SO4, filtered and concentrated. The crude product is triturated with ether to afford the title compound (0.72 g, 1.35 mmol) as a white foam.

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