Enantioselective Biotransformation of 1-Isopropylnaphthalene in Rabbits.
作者:Takashi MATSUMOTO、Takashi ISHIDA、Yoshio TAKEDA、Kimiko SOH、Ikumi KUBO、Mitsuo SAKAMOTO
DOI:10.1248/cpb.43.216
日期:——
1-Isopropylnaphthalene (1) was administered orally to rabbits and the following eight metabolites, 2-(1-naphthyl)-2-propanol (7), 2-(1-naphthyl)-1-propanol (8 : R/S=83 : 17), 2-(1-naphthyl)-1, 2-propanediol (9 : R/S=40 : 60), 4-isopropyl-1, 2-naphthoquinone (10), 4-isopropyl-1-naphthol (11), 4-isopropyl-2-naphthol (12), 5-isopropyl-2-naphthol (13), and 2-(1-naphthyl)propanoic acid (14') as its methyl ester (14 : R/S=52 : 48), were isolated from urine. Among them, three metabolites (8, 9, and 14), possessing an asymmetric carbon atom in the molecule, were formed enantioselectively and five metabolites (7, 10, 11, 12, and 13) were formed regioselectively.The presumed metabolic pathways of 1-isopropylnaphthalene (1) in rabbits leading to these metabolites are discussed.
1-异丙基萘(1)给兔子口服,以下八种代谢物,2-(1-萘基)-2-丙醇(7),2-(1-萘基)-1-丙醇(8:R/S= 83 : 17), 2-(1-萘基)-1, 2-丙二醇 (9 : R/S=40 : 60), 4-异丙基-1, 2-萘醌 (10), 4-异丙基-1-萘酚(11)、4-异丙基-2-萘酚(12)、5-异丙基-2-萘酚(13)和2-(1-萘基)丙酸(14')作为其甲酯(14:R/S =52:48),从尿液中分离出来。其中,分子中具有不对称碳原子的三种代谢物(8、9和14)是对映选择性形成的,五种代谢物(7、10、11、12和13)是区域选择性形成的。推测的代谢途径讨论了 1-异丙基萘 (1) 在兔子体内产生这些代谢物的情况。