p. 1713 - 1715
(1980)sodium 2-(4-methoxyphenyl)-3-<2-<(methoxycarbonyl)methylene>pyrrolidin-1-yl>propionate
methyl 2-(4-methoxyphenyl)-3-<2-<(methoxycarbonyl)methylene>pyrrolidin-1-yl>propionate
methyl 1-aza-3-(4-methoxyphenyl)-4-oxobicyclo<4.3.0>-5-nonene-5-carboxylate
methyl 2-(4-methoxyphenyl)-3-(2-thionopyrrolidin-1-yl)propionate
6-(4-Methoxy-phenyl)-7-oxo-1,2,3,5,6,7-hexahydro-indolizine-8-carboxylic acid