Daniel Thomas

N-[(Ethyl-1 pyrrolidinyl-2) méthyl] méthoxy-2 sulfamoyl-5 benzamide (sulpiride)

CIsH23N304S, triclinic, P i , Z = 2, a = 11.173(2), b = 9.082(2), c = l l . 2 9 5 ( 2 ) / k , a = 90 .5 (1 ) , f l = 130.9(1), 7 = 100.1 (1)°; De= 1.34, D m = 1.34 Mg m -3. The structure was solved by direct methods and refined by a full-matrix least-squares procedure to a final R value of 0.077 for 1622 observed 0567-7408/81/040981-04501.00 reflexions using Cu Ka radiation. The molecule of sulpiride is in extended configuration. A partial disorder was observed around the amide function. Hydrogen bonds occur between the H atoms of the sulfamoyl group and the amide function and the pyrrolidinyl group of two different molecules.