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:
May. 20, 2008
Filed:
Jul. 07, 2004
Applicants:
Yu-liang Liu, Taipei, TW;
Rung-tian Suen, Taipei, TW;
Ying-chi Chiu, Taipei, TW;
Inventors:
Assignee:
Everlight USA, Inc., Pineville, NC (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 229/00 (2006.01); C07C 69/76 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides a compound of the following formula (I): wherein Ris methyl or 4-aminobutyl, which may be acylated; X is phenyl or substituted phenyl; W is an esterified group removable by hydrogenolysis. Also disclosed is the preparation method and the application of formula (I) compound.