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:
Aug. 25, 2015
Filed:
Aug. 29, 2013
Applicant:
Sunny Pharmtech Inc., Taoyuan County, TW;
Inventors:
Jien-Heh Tien, Taoyuan County, TW;
Pi-Shan Chiang, Changhua, TW;
Assignee:
SUNNY PHARMTECH INC., Taoyuan County, TW;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07F 9/6584 (2006.01);
U.S. Cl.
CPC ...
C07F 9/65846 (2013.01);
Abstract
This invention discloses a solvent-free process for the preparation of cyclophosphamide. According to this invention, there is no solvent used during the reaction step for preparing cyclophosphamide, so that the total volume of the reaction for preparing cyclophosphamide can be reduced and the manufacture of cyclophosphamide can become more efficient. Furthermore, the above solvent-free process for the preparation of cyclophosphamide is more simply operated, more economic, and more environmental friendly than the preparation of cyclophosphamide in the prior art.