申请人:Shanghai Growing Chem Co., Ltd.
公开号:EP2502901A1
公开(公告)日:2012-09-26
The invention discloses a new synthetic route of Fingolimod hydrochloride, which includes the following steps: step1, reacting compound (5) with sulfhydryl compounds 1 under alkaline conditions, and obtaining key intermediate compound (6), step2, obtaining sulfone compound 7 through oxidation reaction of compound 6, step3, obtaining key intermediate compound (9) through Knoevenagel condensation reaction of the sulfone compound (7) and raw materials (aldehyde compound 8) under alkaline conditions, step4, obtaining 5- amino - 5 - [2 - (4 - N-octyl phenyl) ethyl ] - 2,2- two methyl - 1,3- two oxygen six ring through hydrogenation reduction reaction and deaminate protection of compound (9); then removing acetonide protection in the dilute hydrochloric acid solution, obtaining hydrochloride at the same time, hence getting the target compound (1) of Fingolimod hydrochloride.
The advantage of the route of synthetic are as follows: the raw materials are cheap and easily obtained, and are easily to treat after reaction. It is not only to the safety of the experiment and high yield but also to reduce the pollution of the environment.
本发明公开了一种新的盐酸芬戈莫德合成路线,包括以下步骤:步骤 1,化合物(5)与巯基化合物 1 在碱性条件下反应,得到关键中间体化合物(6); 步骤 2,通过化合物 6 的氧化反应得到砜类化合物 7; 步骤 3,通过砜类化合物(7)的克诺文纳格尔缩合反应得到关键中间体化合物(9); 步骤 4,通过砜类化合物(9)的克诺文纳格尔缩合反应得到关键中间体化合物(10); 步骤 5,通过砜类化合物(10)的克诺文纳格尔缩合反应得到关键中间体化合物(11)、在碱性条件下,通过砜化合物(7)与原料(醛化合物 8)的 Knoevenagel 缩合反应,得到关键中间体化合物(9);步骤 4,通过化合物(9)的氢化还原反应和脱氨基保护,得到 5-氨基-5-[2-(4-N-辛基苯基)乙基]-2,2-二甲基-1,3-二氧六环;然后在稀盐酸溶液中去除丙酮保护,同时得到盐酸盐,从而得到盐酸芬戈莫德的目标化合物(1)。
该合成路线的优点是:原料便宜易得,反应后易于处理。不仅实验安全、产率高,而且减少了对环境的污染。