The invention discloses a compound of formula (I) wherein, at least one of R
1
, R
2
, R
3
and R
4
is —C(═O)R
n
and R
1
, R
2
R
3
and R
4
are H or CH
3
and R
n
is alkyl or alkenyl group. The alkenyl group have one or more number of double bonds either in cis form or trans form or both. In R
n
, where n is 12 to 30 carbons; and pharmaceutically acceptable salt thereof. The said alkenyl groups are preferably selected from the group consisting of eicosapentaenoic acid (EPA) or DHA (docosahexaenoic acid). This invention further discloses processes for their preparation of compounds of formula I and pharmaceutical compositions that contain these compounds.
本发明公开了一种化合物,其
化学式为(I),其中,R1,R2,R3和R4中至少一个为—C(═O)Rn,且R1,R2,R3和R4为H或
CH3,Rn为烷基或
烯基基团。
烯基基团具有一个或多个双键,可以是顺式或反式,或两者都有。在Rn中,n为12到30个
碳;以及其药学上可接受的盐。所述
烯基基团优选选自二十
碳五
烯酸(EPA)或
二十二碳六烯酸(
DHA)的群。本发明还公开了制备化合物I的方法和含有这些化合物的药物组合物。