The indolomorphinans 4–7 were prepared from their corresponding morphinan-6-one derivatives 8–11via Fischer indole synthesis. Compounds 4 and 5 exhibited higher antagonist potency at δ opioid receptors in the mouse vas deferens preparation than the reference drug HS 378 (2), while compounds 6 and 7 were less potent.
所述indolomorphinans 4 - 7从它们的相应的
吗啡烷-6-酮衍
生物制备8 - 11经由费歇尔
吲哚合成。与参考药物HS 378(2)相比,化合物4和5在小鼠输精管制剂中的δ阿片样物质受体上表现出更高的拮抗剂效力,而化合物6和7的效力更弱。