Pyrrolo[1,2-a]indole compounds

Pyrrolo[1,2-c]imidazolediones

Pyrrolo[2,1-b][3]benzazepines

Pyrrolo[2,1-b][3]benzazepines

Pyrrolo[2,1-c][1,4]benzoxazepine and benzoxazocine derivatives

Pyrrolo[3,4,-d][2]benzazepines

Pyrrolo[3,4-b]pyridines

Pyrrolo[3,4-d] [2] benzazepines

Pyrrolo[3,4-d]pyrimidines and methods for their preparation

Pyrrolo[3,4-d][2]benzazepines

Pyrrolo[3,4-d][2]benzazepines

Pyrrolo[3,4-d][2]benzazepinones

Pyrrolyl compounds and processes for their manufacture

Pyrrolyl oxyphenyl ketones

Pyrrylfluoran compounds

Pyrrylmethylthio flavoring agents

Pyrylium dyes having a fused rigidized nitrogen-containing ring

Pyrylium dyes having a fused, rigidized nitrogen-containing ring