申请人:Suntory Limited
公开号:US04837349A1
公开(公告)日:1989-06-06
A t-butyldimethylsilyl carbamate derivative and a process for producing the same are disclosed. Tertiary-butyldimethylsilyl carbamate derivatives having the following general formula (1) are intermediates for the production of a variety of carbamate esters that can be extensively used as drugs acting on the central nervous system or circulatory organs, as agrichemicals (e.g. insecticides and herbicides), or as antimicrobial agents; a process capable of economical and efficient production of such intermediates is also disclosed: ##STR1## where R.sup.1 is an alkyl group having 1-3 carbon atoms or a hydrogen atom; R.sup.2 is ##STR2## (where R.sup.3 is a hydrogen atom, an alkyl, alkenyl or aralkyl group having 1-10 carbon atoms, each of which groups may be substituted by a hydroxyl group, a t-butyldimethylsilyloxy group, a methylthio group, a lower alkoxycarbonyl group, a lower alkoxy group, an indolyl group or an imidazolyl group; R.sup.4 is a lower alkoxycarbonyl group, an N-alkylamido group having 2-6 carbon atoms, an O-tetrahydropyranylthr eonine methyl ester amido residue, an O-t-butyldimethylsilylthreonine methyl ester amido residue, a threonine methyl ester amido residue or --(CH.sub.2).sub.n --COOR.sup.5 (where n is an integer of 1-3 and R.sup.5 is a lower alkyl group), provided that R.sup.3 combines with R.sup.4 to form a cyclopentyl group, a cyclohexyl group, a tetrahydrofuranyl group or a dioxanyl group, these rings being optionally substituted by a lower alkyl group, a lower alkenyl group, a lower alkoxycarbonyl group or a lower alkoxycarbonylmethyl group); and R.sup.1 and R.sup.2, when taken together, form a 4- or 5-membered carbon ring, which may be substituted by a lower alkoxycarbonyl group or a t-butyldimethylsilyloxycarbonyl group.
揭示了一种t-叔丁基二甲基硅烷基氨基甲酸酯衍生物及其生产方法。具有以下一般式(1)的三叔丁基二甲基硅烷基氨基甲酸酯衍生物是生产各种氨基甲酸酯的中间体,这些氨基甲酸酯可以广泛用作作用于中枢神经系统或循环器官的药物、农药(例如杀虫剂和除草剂)或抗微生物剂;还揭示了一种能够经济高效地生产这种中间体的方法:其中R.sup.1是具有1-3个碳原子的烷基基团或氢原子;R.sup.2是##STR2##(其中R.sup.3是氢原子、具有1-10个碳原子的烷基、烯基或芳基基团,每个基团可能被羟基、t-叔丁基二甲基硅氧基基团、甲硫基团、较低的烷氧羰基基团、较低的烷氧基团、吲哚基团或咪唑基团取代;R.sup.4是较低的烷氧羰基基团、具有2-6个碳原子的N-烷基酰胺基团、O-四氢吡喃基缬氨酸甲酯酰胺残基、O-t-叔丁基二甲基硅基缬氨酸甲酯酰胺残基、缬氨酸甲酯酰胺残基或--(CH.sub.2).sub.n --COOR.sup.5(其中n是1-3的整数,R.sup.5是较低的烷基基团),前提是R.sup.3与R.sup.4结合形成环戊基团、环己基团、四氢呋喃基团或二氧杂环己基团,这些环可选择地被较低的烷基基团、较低的烯基基团、较低的烷氧羰基基团或较低的烷氧羰基甲基基团取代);以及当R.sup.1和R.sup.2结合在一起时,形成一个4-或5-成员碳环,该环可被较低的烷氧羰基基团或t-叔丁基二甲基硅氧羰基基团取代。