Novel crystal of quinoxalinedione derivative anhydride - Patent Pending

United States Patent Application 20050130978
Kind Code A1
Yuda, Masamichi ; et al. June 16, 2005
Novel crystal of quinoxalinedione derivative anhydride
Abstract
The object of the present invention is to provide a novel crystal of a quinoxalinedione derivative as an AMPA antagonist, which enables providing a bulk for manufacturing pharmaceuticals that are stable under any humidity conditions.
Inventors: Yuda, Masamichi; (Tsukuba-shi, JP) ; Kohinata, Takeru; (Tokyo, JP)
Correspondence Name and Address: SUGHRUE MION, PLLC
2100 PENNSYLVANIA AVENUE, N.W.
SUITE 800
WASHINGTON
DC
20037
US

Serial No.: 511089
Series Code: 10
Filed: October 14, 2004
PCT Filed: April 16, 2003
PCT NO: PCT/JP03/04844
U.S. Current Class: 514/249; 544/354
U.S. Class at Publication: 514/249; 544/354
Intern'l Class: A61K 031/498; C07D 241/36