(S-(R*,R*))-1-((1-Acetyl-2-pyrrolidinyl)carbonyl)-2-pyrrolidinecarboxaldehyde 100002-29-7 2-Pyrrolidinecarboxaldehyde, 1-((1-acetyl-2-pyrrolidinyl)carbonyl)-, (S-(R*,R*))- Acetyl-prolyl-prolinal