7.87
[]. Daugan A, et al. The discovery of tadalafil: a novel and highly selective PDE5 inhibitor. 2: 2,3,6,7,2,2a-hexahydropyrazino[',2':,6]pyrido[3,-b]indole-,-dione analogues. J Med Chem. 2003 Oct 9;6(2):533-2.
H302-H35-H39-H335
P26-P26-P270-P27-P280-P302+P352-P30+P30-P330-P362+P36-P05-P50