申请人:Riace Establishment
公开号:US05672601A1
公开(公告)日:1997-09-30
Compounds of general formula (I) ##STR1## wherein R and R.sub.1, different from each other, are a straight or branched C.sub.2 -C.sub.8 acyl group; a group of formula --CH.sub.2 -- (A)--B wherein: A is a single bond between two carbon atoms, or a group of formula --CH--CH, --CH.sub.2 --CO--, B is a C.sub.6 -C.sub.10 aryl group, optionally substituted, at the ortho-meta- and para-positions, with one or more substituents, which are the same or different, selected from the group consisting of CONHR, carboxyl, cyano, nitro, NHCOR; an aromatic heterocyclic or alicyclic group with 5 or 6 members in the ring, optionally benzocondensed, having at least one heteroatom selected from nitrogen, oxygen, sulfur, said heterocyclic group optionally having one or more substituents as described above for the aryl group; with the proviso that when one of R or R.sub.1 is the propionyl group, the other can not be the cinnamyl group or the p-nitrocinnamyl group, and when R is the propionyl group, R.sub.1 cannot be o-, or m-nitrocinnamyl; and the pharmaceutically acceptable salts thereof. Compounds of formula (I) have central analgesic activity.
通式(I)的化合物 ##STR1## 其中R和R.sub.1互不相同,是直链或支链的C.sub.2-C.sub.8酰基;公式--CH.sub.2--(A)--B的基团,其中:A是两个碳原子之间的单键,或者是公式--CH--CH,--CH.sub.2--CO--的基团,B是C.sub.6-C.sub.10芳基基团,可以在邻、间、对位上用一个或多个取代基替换,所述取代基是相同或不同的,选自由CONHR、羧基、氰基、硝基、NHCOR组成的群;带有5或6个成员的环的芳香杂环或脂环基团,可以是苯并的,具有至少一个从氮、氧、硫中选择的杂原子,所述杂环基团可以具有上述芳基基团的一个或多个取代基;但是当R或R.sub.1之一为丙酰基时,另一个不能为肉桂酰基或对硝基肉桂酰基,当R为丙酰基时,R.sub.1不能为o-或m-硝基肉桂酰基;以及其药学上可接受的盐。公式(I)的化合物具有中枢镇痛活性。