p. 1751 - 1752
(2007/10/02)p. 1785 - 1786
(2007/10/02)dimethyl 3,3-dioxo-3-thiabicyclo<3.2.0>heptane-6,7-dicarboxylate
9-phenyl-4-thia-9-azatricyclo<5.3.0.02,6>decane 4,4-dioxide
8,10-dioxo-9-phenyl-4-thia-9-azatricyclo<5.3.0.02,6>decane 4,4-dioxide
cis-hexa-1,5-diene-3,4-dicarboxylic acid anhydride
3,3-dioxo-7-phenylcarbamoyl-3λ6-thia-bicyclo[3.2.0]heptane-6-carboxylic acid