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:
Feb. 16, 2021
Filed:
Mar. 26, 2020
Applicant:
Scinopharm Taiwan, Ltd., Tainan, TW;
Inventors:
Yuan-Xiu Liao, Tainan, TW;
Yuan-Chang Huang, Tainan, TW;
Assignee:
ScinoPharm Taiwan, Ltd., Tainan, TW;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07D 491/22 (2006.01);
U.S. Cl.
CPC ...
C07D 491/22 (2013.01); C07B 2200/13 (2013.01);
Abstract
Crystalline form S1 of irinotecan free base characterized by a powder X-ray diffraction pattern with peaks at about 8.7±0.2, 13.1±0.2, 14.5±0.2, 17.4±0.2, 18.4±0.2, 20.9±0.2, 24.0±0.2 and 27.5±0.2 degrees two-theta degrees two-theta, and crystalline form S2 of irinotecan free base characterized by a powder X-ray diffraction pattern with peaks at about 7.1±0.2, 10.6±0.2, 12.4±0.2, 20.6±0.2, 21.6±0.2 and 24.2±0.2 degrees two-theta.