20594-83-6 (5alpha,6alpha)-17-(cyclobutylmethyl)-4,5-epoxymorphinan-3,6,14-triol Prestwick0_000118 BSPBio_000136 BPBio1_000150 Prestwick3_000118 C07251 SPBio_002075 Prestwick2_000118 Prestwick1_000118