申请人:American Cyanamid Company
公开号:US04075228A1
公开(公告)日:1978-02-21
There are provided substituted 1,3-dithiolane compounds and a method for preparing the same. Said 1,3-dithiolane compounds are useful intermediates in the preparation of tetrahydro-7-oxobenzo[b]thien-4-ylureas and tetrahydro-4-oxo-1-naphthylureas which are known animal growth-promoting agents, which thiolanes are represented by the formula: ##STR1## wherein R.sub.1 is a member selected from the group consisting of 2-thienyl and phenyl; R.sub.2 is a member selected from the group consisting of ##STR2## wherein X is chlorine or bromine; R.sub.3 and R.sub.4 are each members selected from the group consisting of hydrogen and methyl; and when R.sub.1 and R.sub.2 are taken together with the carbon atom to which they are attached they represent a bicyclic moiety selected from the group consisting of ##STR3## wherein the carbon atom of said bicyclic moiety marked with an asterisk is also part of the 1,3-dithiolane ring; U is a moiety selected from the group consisting of ##STR4## and when U is ##STR5## said compounds are the racemic mixtures and the optical isomers thereof.
提供了替代的1,3-二硫杂环化合物及其制备方法。所述1,3-二硫杂环化合物是制备已知的动物生长促进剂四氢-7-氧代苯并[b]噻唑-4-基脲和四氢-4-氧代-1-萘基脲的有用中间体,该硫杂环的化学式为:##STR1## 其中R.sub.1是从2-噻吩基和苯基中选择的成员;R.sub.2是从##STR2## 中选择的成员,其中X是氯或溴;R.sub.3和R.sub.4是从氢和甲基中选择的成员;当R.sub.1和R.sub.2与它们连接的碳原子一起被选为从##STR3## 中选择的双环基团时,它们代表一个双环基团,其中带有星号的双环基团的碳原子也是1,3-二硫杂环的一部分;U是从##STR4## 中选择的基团;当U是##STR5## 时,所述化合物是外消旋混合物及其光学异构体。