37.3
[]. B R de Costa, et al. Alterations in the stereochemistry of the kappa-selective opioid agonist U50,488 result in high-affinity sigma ligands. J Med Chem. 989 Aug;3(8):996-00.
H30-H35-H39-H335
P6-P64-P70-P7-P80-P30+P35-P304+P340-P305+P35+P338-P330-P36+P364-P403+P33-P405-P50