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. 23, 2006
Filed:
Aug. 27, 1999
David Edwin Thurston, Nottingham, GB;
Philip Wilson Howard, Nottingham, GB;
David Edwin Thurston, Nottingham, GB;
Philip Wilson Howard, Nottingham, GB;
Spirogen Limited, , GB;
Abstract
Compounds of formula (Ia) and (Ib) wherein A is CH, or a single bond; Ris selected from: R, OH, OR, COH, COR, COH, COR, SOR, CN; R, Rand Rare independently selected from H, R, OH, OR, halo, amino, NHR, nitro, MeSn; and Ris selected from H, R, OH, OR, halo, amino, NHR, nitro, MeSn, where R is as defined above, or the compound is a dimer with each monomer being the same or different and being of formula (Ia) or (Ib), where the Rgroups of the monomers form together a bridge having the formula —X—R'—X— linking the monomers, where R′ is an alkylene chain containing from 3 to 12 carbon atoms, which chain may be interrupted by one or more hetero-atoms and/or aromatic rings and may contain one or more carbon—carbon double or triple bonds, and each X is independently selected from O, S, or N; except that in a compound of formula (Ia) when A is a single bond, then Ris not CH═CH(CONH) or CH═CH(CONMe). Other related compounds are also disclosed