Ginsenoside C-K polymorphic compounds and method for preparing same

US9670245B2 · kind B2 · utility

Assignee

• Zhejiang Hisun Pharmaceutical Co., Ltd. · CN

Inventors

• Guobin Ren · Shanghai, CN
• Changliang Dai · Zhejiang, CN
• Jinyao Chen · Shanghai, CN
• Feng Chen · Hubei, CN
• Minghui Qi · Shanghai, CN
• Wenming Zhu · Zhejiang, CN
• Minghuang Hong · Shanghai, CN
• Hua Bai · Lake Jackson, US

Key dates

• Filing date: Apr 1, 2013
• Grant date: Jun 6, 2017
• Expiry date: Aug 29, 2033

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07B2200/13
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Provided are several types of ginsenoside polymorphic substances and a method for preparing same. In particular, new crystal form A, crystal form B, crystal form C, crystal form E, crystal form F, crystal form I, crystal form K, crystal form L, crystal form M, crystal form N, and crystal form O are involved.