3-Piperidinecarboxylic acid, 1-(4,4-diphenyl-3-butenyl)- 85375-85-5 N-(4,4-Diphenyl-3-butenyl)homo-beta-proline N-(4,4-Diphenyl-3-butenyl)nipecotic acid SK&F 100561 SK&F 89976 SK&F 89976-A Skf 89976A