申请人:Sankyo Company Limited
公开号:US04603201A1
公开(公告)日:1986-07-29
Compounds of formula (I): ##STR1## [wherein R.sup.1 and R.sup.3 represent hydrogen or halogen atoms, R.sup.2 represents a hydrogen or halogen atom or a lower alkyl or alkoxy group (provided R.sup.1, R.sup.2 and R.sup.3 are not simultaneously hydrogen), represents a single or double carbon-carbon bond and, where it is a single bond, R.sup.4 represents a group of formula --SR.sup.5 (wherein R.sup.5 represents an optionally substituted alkyl, phenyl, aralkyl or pyridyl group or a lower alkenyl group) and, where it is a double bond, R.sup.4 represents hydrogen] can be prepared by reacting a compound of formula (II): ##STR2## with a compound of formula R.sup.6 H [where R.sup.6 represents a group --SR.sup.5, a group --SR.sup.7 (where R.sup.7 represents a group of formula ##STR3## and Y represents oxygen or sulphur, R.sup.8 and R.sup.9 represent lower alkoxy groups and R.sup.10 represents a lower alkoxy, lower alkyl or phenyl group), a methoxy group or a halogen atom] to give a compound of formula (IV): ##STR4## or, where R.sup.6 represents a methoxy group, a methyl ester thereof; reacting this compound with hydrazine to give a compound of formula (V): ##STR5## and, if necessary, treating the compound of formula (V) with an acid or a base to produce the compound of formula (VI). All of the compounds of formula (I) are valuable antifungal agents and compounds of formula (V) where R.sup.6 represents a group of formula --SR.sup.5 are novel compounds.
式(I)的化合物:##STR1## [其中R.sup.1和R.sup.3代表氢或卤素原子,R.sup.2代表氢或卤素原子或低级烷基或烷氧基(如果R.sup.1,R.sup.2和R.sup.3不同时为氢),代表单个或双碳-碳键,其中如果是单键,R.sup.4代表公式--SR.sup.5的基团(其中R.sup.5代表可选取代的烷基,苯基,芳基烷基或吡啶基或低级烯基),如果是双键,R.sup.4代表氢],可以通过将公式(II)的化合物:##STR2## 与公式R.sup.6H的化合物反应而制备得到[其中R.sup.6代表--SR.sup.5的基团,--SR.sup.7的基团(其中R.sup.7代表公式##STR3##,Y代表氧或硫,R.sup.8和R.sup.9代表低级烷氧基,R.sup.10代表低级烷氧基,低级烷基或苯基),甲氧基基团或卤素原子],从而得到公式(IV)的化合物:##STR4## 或者,如果R.sup.6代表甲氧基基团,则得到其甲酯;将该化合物与肼反应得到公式(V)的化合物:##STR5## 并且,如果必要,用酸或碱处理公式(V)的化合物以产生公式(VI)的化合物。所有公式(I)的化合物都是有价值的抗真菌剂,其中R.sup.6代表公式--SR.sup.5的化合物是新化合物。