Essential structure of orexin 1 receptor antagonist YNT-707, Part IV: The role of D-ring in 4,5-epoxymorphinan on the orexin 1 receptor antagonistic activity
作者:Tsuyoshi Saitoh、Kazunori Seki、Ryo Nakajima、Naoshi Yamamoto、Noriki Kutsumura、Yasuyuki Nagumo、Yoko Irukayama-Tomobe、Yasuhiro Ogawa、Yukiko Ishikawa、Ryuji Tanimura、Masashi Yanagisawa、Hiroshi Nagase
DOI:10.1016/j.bmcl.2019.07.039
日期:2019.9
essential structure of YNT-707 for high binding affinity against OX1R, we prepared derivatives of 2 without the D- and 4,5-epoxy rings to clarify the roles of these structural determinants toward OX1R antagonistic activity. The D- and 4,5-epoxy rings played important roles for the active orientation of the 17-sulfonamide and 6-amide side chains. Finally, we identified the simple structure required for
带有吗啡喃骨架的orexin 1受体(OX 1 R)拮抗剂,例如YNT-707(2)和YNT-1310(3),显示出对OX 1 R的有效且极高的选择性拮抗活性。 YNT-707对OX 1 R具有高结合亲和力的基本结构,我们制备了2个不带D-和4,5-环氧环的衍生物,以阐明这些结构决定簇对OX 1 R拮抗活性的作用。D-和4,5-环氧环对于17-磺酰胺和6-酰胺侧链的活性取向起重要作用。最后,我们确定了选择性OX 1所需的简单结构复杂的吗啡喃骨架中的R拮抗活性,有望成为进一步设计OX 1 R配体的有用支架。