All
 D03 Heterocyclic Compounds D006571 +
 D03.383 Heterocyclic Compounds, 1-Ring D006573 +
 D03.383.773 Pyrrolidines D011759 +
 D03.383.773.050 Anisomycin D000841 
 D03.383.773.165 Clemastine D002974 
 D03.383.773.342 Glycopyrrolate D006024 
 D03.383.773.400 Kainic Acid D007608 
 D03.383.773.475 Lincomycin D008034 +
 D03.383.773.630 N-Nitrosopyrrolidine D009242 
 D03.383.773.589 Nafoxidine D009256 
 D03.383.773.610 Nitromifene D009594 
 D03.383.773.700 Pentolinium Tartrate D010425 
 D03.383.773.728 Procyclidine D011352 
 D03.383.773.812 Pyrrolidinones D011760 +
 D03.383.773.906 Tremorine D014203 
 D03.383.773.107 Bepridil D015764 
 D03.383.773.953 3,4-Dichloro-N-methyl-N-(2-(1-pyrrolidinyl)-cyclohexyl)-benzeneacetamide, (trans)-Isomer D019900