Studies on hypolipidemic agents. I. Synthesis of 1,3-dioxolanes and 1,3-dioxanes.
作者:AKASHI ERIGUCHI、TOSHIO TAKEGOSHI
DOI:10.1248/cpb.30.428
日期:——
2-Aryl-substituted 3a, 4, 5, 9b-tetrahydronaphtho [1, 2-d]-1, 3-dioxolanes (4), 5-phenyl-(6), 5-(1, 2, 3, 4-tetrahydro-2-naphthyl)-(7) and 5-(2-naphthyl)-1, 3-dioxanes (8) and 3-aryl-substituted 1H-naphtho [2, 1-d] [1, 3] dioxins (5) were synthesized. Among them, the 1, 3-dioxanes (6-8) were each obtained as a mixture of the trans and cis isomers. Two stereoisomers of the 2-(3-pyridyl)-substituted derivatives (6c and 7c) and the trans isomers of the other 1, 3-dioxanes (6-8) were isolated and their stereostructures are discussed. Most of the trans isomers of 6-8 showed potent hypolipidemic activity, while the cis isomers were inactive. The most active compound was the trans isomer of 7c.
2-芳基取代的3a, 4, 5, 9b-四氢萘并[1, 2-d]-1, 3-二氧杂环戊烷(4)、5-苯基衍生物(6)、5-(1, 2, 3, 4-四氢-2-萘基)衍生物(7)和5-(2-萘基)-1, 3-二氧杂环戊烷(8)以及3-芳基取代的1H-萘并[2, 1-d][1, 3]二氧辛英(5)被合成。其中,1, 3-二氧杂环戊烷(6-8)各自以反式和顺式异构体的混合物形式获得。两种立体异构体的2-(3-吡啶基)取代衍生物(6c和7c)以及其它1, 3-二氧杂环戊烷(6-8)的反式异构体被分离出来,并讨论了它们的立体结构。大多数6-8的反式异构体表现出强大的降血脂活性,而顺式异构体则无活性。活性最高的化合物是7c的反式异构体。