US Patent Issued to CHUNGHWA CHEMICAL SYNTHESIS & BIOTECH on Feb. 17 for "Crystal forms A, B, C, D, E, F and G of selumetinib sulfate and preparation methods thereof" (Taiwanese Inventors)

ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,552,751, issued on Feb. 17, was assigned to CHUNGHWA CHEMICAL SYNTHESIS & BIOTECH Co. LTD. (New Taipei, Taiwan).

"Crystal forms A, B, C, D, E, F and G of selumetinib sulfate and preparation methods thereof" was invented by Yao-Lung Hsu (New Taipei, Taiwan), Kuang-Chan Hsieh (New Taipei, Taiwan), Hui-Wen Cheng (New Taipei, Taiwan) and Zong-Han Yang (New Taipei, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to crystal forms of A, B, C, D, E, F and G of selumetinib sulfate and the preparation method thereof. The crystal forms A, B and F of selumetinib sulfate are obtained by adding 6-(4-Bromo-2-chloro-phenylamino)-7-fl...