0 R-Tetrahydropapaverine N-acetyl-L-leucinate CAS 141109-12-8 In Intermediates, Pharmaceutical Chemicals, Products 141109-12-8,R-Tetrahydropapaverine N-acetyl-L-leucinate,(R)-1-[(3,4-dimethoxyphenyl)methyl]-1,2,3,4-tetrahydro-6,7-dimethoxyisoquinoline N-acetyl-L-leucine