The present invention provides a process for preparation of racemic voriconazole in a single reaction vessel. The present invention also provides a process for preparation of voriconazole using racemic voriconazole and the process of making it therewith.
Active agent delivery systems and methods for protecting and administering active agents
申请人:Mickle Travis
公开号:US20070232529A1
公开(公告)日:2007-10-04
The present invention relates to active agent delivery systems and more specifically to compositions that comprise amino acids, as single amino acids or peptides, covalently attached to active agents and methods for administering conjugated active agent compositions.
ACTIVE AGENT DELIVERY SYSTEMS AND METHODS FOR PROTECTING AND ADMINISTERING ACTIVE AGENTS
申请人:Mickle Travis
公开号:US20090253792A1
公开(公告)日:2009-10-08
The present invention relates to active agent delivery systems and more specifically to compositions that comprise amino acids, as single amino acids or peptides, covalently attached to active agents and methods for administering conjugated active agent compositions.
ACTIVE AGENT DELIVERY SYSTEMS AND METHODS FOR PROTECTING AND ADMINISTERING ACTIVE AGENTS
申请人:Mickle Travis
公开号:US20090306228A1
公开(公告)日:2009-12-10
The present invention relates to active agent delivery systems and more specifically to compositions that comprise amino acids, as single amino acids or peptides, covalently attached to active agents and methods for administering conjugated active agent compositions.
METHOD FOR PREPARING VORICONAZOLE AND INTERMEDIATE THEREOF
申请人:Zhejiang Huahai Pharmaceutical Co., Ltd.
公开号:US20220162189A1
公开(公告)日:2022-05-26
Disclosed is a method for preparing voriconazole and an intermediate thereof In the method, a voriconazole condensate isomer is reacted as a starting material in the presence of an acid to obtain 4-chloro-6-ethyl-5-fluoropyrimidine and 2′,4′-difluoro-2-[1-(1H-1,2,4-triazolyl)]acetophenone. A method for preparing voriconazole by using the intermediate thus obtained is further disclosed. By adopting the method of the present invention, the utilization rate of starting materials and auxiliary materials for preparing voriconazole on the basis of the prior art can be greatly improved, thereby reducing costs.