The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 25, 2014
Filed:
Nov. 15, 2010
Zhen Wang, Sichuan, CN;
Dongbing Zhao, Sichuan, CN;
Weida Wang, Sichuan, CN;
Jingbo Lan, Sichuan, CN;
Jinsong You, Sichuan, CN;
Zhen Wang, Sichuan, CN;
Dongbing Zhao, Sichuan, CN;
Weida Wang, Sichuan, CN;
Jingbo Lan, Sichuan, CN;
Jinsong You, Sichuan, CN;
Innopharmax, Inc., Taipei, TW;
Abstract
A preparation process of (6R)-tetrahydrobiopterin hydrochloride is provided, which comprises hydrogenating L-biopterin in the presence of a catalyst of Pt group metal in the basic substrate containing solvent, potassium hydroxide and potassium dihydrogen phosphate to obtain (6R)-tetrahydrobiopterin hydrochloride, wherein the pH value of the basic substrate is controlled by potassium hydroxide and potassium dihydrogen phosphate in the range of about 10 to about 13.