This invention relates to 1-benzoyl-3-(4,5,6,7-tetrahydrobenzo[b]thien-4-yl)urea, 1-benzoyl-3-(4,5,6,7-tetrahydro-7-oxobenzo[b]thien-4-yl)urea, and derivatives thereof and a method for the preparation of said compounds and substituted derivatives. Both of the above referred-to compounds are novel and useful intermediates for the preparation of the corresponding tetrahydrobenzo[b]thien-4-ylurea and tetrahydro-7-oxobenzo[b]thien-4-ylurea, respectively. The latter compounds and certain derivatives thereof are animal growth promoting agents.
本发明涉及1-苯甲酰基-3-(4,5,6,7-四氢苯并[b]
噻吩-4-基)
脲、1-苯甲酰基-3-(4,5,6,7-四氢-7-氧代苯并[b]
噻吩-4-基)
脲及其衍
生物以及制备该化合物及其取代衍
生物的方法。上述两种化合物均为新颖且有用的中间体,可用于制备相应的四氢苯并[b]
噻吩-4-基
脲和四氢-7-氧代苯并[b]
噻吩-4-基
脲。后者及其某些衍
生物是动物生长
促进剂。