申请人:Sunny Pharmtech Inc.
公开号:US10144692B2
公开(公告)日:2018-12-04
This invention discloses a method of making vitamin K1. The mentioned method of making vitamin K1 comprises performing a first one-pot synthesis with base catalyst, performing a first hydrolysis, performing a substitution, and performing a second one-pot synthesis without metal oxidant. The starting material of this invention is stable 2-methyl-1,4-naphthoquinone. Preferably, this invention provides a method of making vitamin K1 efficiently on simplifying the operation and decreasing the side-product. More preferably, without metal residue, the vitamin K1 of this invention is without metal residue and more safety for clinical application.
本发明公开了一种制造维生素K1的方法。所述维生素 K1 的制造方法包括在碱催化剂的作用下进行第一次单锅合成,进行第一次水解,进行取代反应,以及在不使用金属氧化剂的情况下进行第二次单锅合成。本发明的起始原料是稳定的 2-甲基-1,4-萘醌。优选地,本发明提供了一种简化操作、减少副产物的高效制造维生素 K1 的方法。更优选地,无金属残留,本发明的维生素 K1 无金属残留,临床应用更安全。