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备
维生素K1的方法。所述制备
维生素K1的方法包括使用碱催化剂进行第一次一锅法合成,进行第一次
水解,进行取代反应,以及在无
金属氧化剂的情况下进行第二次一锅法合成。本发明的起始材料是稳定的
2-甲基-1,4-萘醌。本发明提供了一种高效制备
维生素K1的方法,简化了操作并减少了副产物。更重要的是,本发明所制备的
维生素K1无
金属残留,对临床应用更加安全。