The present invention provides processes for the preparation of 3, 5-Dihydroxy-4-isopropyl-trans-stilbene or a salt or solvate thereof and novel intermediates used therein. In some embodiments the 3, 5-Dihydroxy-4-isopropyl-trans-stilbene is prepared from (E)-2-chloro-2-isopropyl-5-styrylcyclohexane-1,3-dione. Also disclosed are crystal forms of 3, 5-Dihydroxy-4-isopropyl-trans-stilbene or a salt or solvate thereof and pharmaceutical compositions comprising same.
本发明提供了制备3,5-二羟基-4-异丙基-反式-
二苯乙烯或其盐或溶液的工艺及其所用的新型中间体。在某些实施方案中,3, 5-二羟基-4-异丙基-反式
二苯乙烯由 (E)-2-chloro-2-isopropyl-5-styryllcyclohexane-1,3-dione 制备。此外,还公开了 3,5-二羟基-4-异丙基-反式-
二苯乙烯或其盐或溶液的晶体形式,以及由其组成的药物组合物。