首页> 外国专利> Synthesis of benzofquinolinones and intermediates characterised by a process of ketalization by 1,3-bis-trimethylsilyloxy propandiol to a solution of trifluoromethanesulfonate in methylene chloride to yield 6-bromo-2-tetralone propylene ketal

Synthesis of benzofquinolinones and intermediates characterised by a process of ketalization by 1,3-bis-trimethylsilyloxy propandiol to a solution of trifluoromethanesulfonate in methylene chloride to yield 6-bromo-2-tetralone propylene ketal

机译:苯并[f]喹啉酮及其中间体的合成,其特征在于将1,3-双-三甲基甲硅烷氧基丙二醇缩酮化为三氟甲磺酸盐的二氯甲烷溶液,得到6-溴-2-四氢萘基丙烯缩酮

摘要

A process for preparing (+)-(4aR)-(10bR)-4-methyl-8-(4-ethyl-2-benzothiazolythio)-10b-methyl-1 ,2,3,4,4a,5,6,10b-octahydrobenzo[f]quinolin-3-one, which comprises: reacting a trifluoroacetyloxymethylene sulfide compound of the Formula X with 2-halo-4-ethylbenzothiazole in the presence of a phase transfer catalyst, a hydride reducing reagent and a base. Benzo[f]quinolines are useful as 5a-reductase inhibitors.
机译:(+)-(4aR)-(10bR)-4-甲基-8-(4-乙基-2-苯并噻唑基硫代)-10b-甲基-1,2,3,4,4a,5,6的制备方法10b-八氢苯并[f]喹啉-3-酮,其包括:在相转移催化剂,氢化物还原剂和碱的存在下,使式X的三氟乙酰氧基亚甲基硫化物与2-卤代-4-乙基苯并噻唑反应。苯并[f]喹啉可用作5a-还原酶抑制剂。

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