申请人:Florida Agricultural and Mechanical University
公开号:US04762919A1
公开(公告)日:1988-08-09
Compounds of the formula: ##STR1## wherein one X is COOR, CH.sub.2 COOR, CH(COOR).sub.2, CONHR, CH.sub.2 CONHR, or CN remaining X's are H, F, CH.sub.3, OH, COOR, CH.sub.2 COOR, CH(COOR).sub.2, CONHR, CH.sub.2 CONHR, or CN; Y is ##STR2## R is H, alkyl of 1-5 carbon atoms, or benzyl; R.sub.1 is CH.sub.2 OR.sub.3, COOR, or CONHR; R.sub.2 is H, OR.sub.3, or BR; R.sub.3 is H, COR.sub.4, or tetrahydropyranyl; R.sub.4 is alkyl of 1-5 carbon atoms or benzyl; R.sub.5 is H or COR.sub.4 ; represents a single or double bond; represents .alpha.-position, .beta.-position, or a mixture of .alpha.- and .beta.-positions; and --- represents .alpha.-position; and methods for preparing the same.
该化合物的结构式为:##STR1## 其中一个X是COOR,CH.sub.2 COOR,CH(COOR).sub.2,CONHR,CH.sub.2 CONHR或CN,其余的X是H,F,CH.sub.3,OH,COOR,CH.sub.2 COOR,CH(COOR).sub.2,CONHR,CH.sub.2 CONHR或CN;Y是##STR2## R是H,1-5个碳原子的烷基或苄基;R.sub.1是CH.sub.2 OR.sub.3,COOR或CONHR;R.sub.2是H,OR.sub.3或BR;R.sub.3是H,COR.sub.4或四氢吡喃基;R.sub.4是1-5个碳原子的烷基或苄基;R.sub.5是H或COR.sub.4;代表单键或双键;代表α-位置、β-位置或α-和β-位置的混合;---代表α-位置;以及制备该化合物的方法。