申请人:Bayer Aktiengsellschaft
公开号:US04760063A1
公开(公告)日:1988-07-26
Novel thienooxazines of the formula ##STR1## in which R.sup.1 and R.sup.2, together with the adjacent C atoms, represent an optionally substituted thiophene ring, R.sup.3 represents hydrogen, optionally substituted alkyl, cycloalkyl, alkenyl or aryl, and R.sup.4 represents optionally substituted alkyl, cycloalkyl, alkenyl or aryl, or R.sup.3 and R.sup.4, together with the adjacent nitrogen atom, form a saturated heterocyclic structure which may optionally contain further hetero atoms, promote the yield of animals, e.g. rate of growth, ratio of meat to fat, etc. They are made from new intermediates of the formulas ##STR2## in which R.sup.5 and R.sup.6 may be hydrogen or various organic radicals, or together form a ring.
式子为 ##STR1## 的新型噻呤氧杂芳烃,其中 R.sup.1 和 R.sup.2 与相邻的 C 原子一起表示一个可选取代的噻吩环,R.sup.3 表示氢、可选取代的烷基、环烷基、烯基或芳基,R.sup.4 表示可选取代的烷基、环烷基、烯基或芳基,或 R.sup.3 和 R.sup.4 与相邻的氮原子一起形成饱和的杂环结构,该结构可选包含进一步的杂原子,促进动物产量,例如生长速度、肉脂比等。它们是由新的中间体制备而成,该中间体的式子为 ##STR2## 其中 R.sup.5 和 R.sup.6 可以是氢或各种有机基团,或一起形成一个环。