Changes
/* Relevant structures with substituent variation */
==Structure-2==
===[http://v3.espacenet.com/publicationDetails/claims?CC=US&NR=2005159470A1&KC=A1&FT=D&date=20050721&DB=EPODOC&locale=en_EP US2005159470]===
[[Image:D1D11.jpg|thumb|center|500px]]
*<nowiki></nowiki>First position: R<sub>3</sub> is alkyl, so it is matching with the substituent R<sup>1</sup> (first position) of the generic structure.
*<nowiki></nowiki>Fifth position: X is CR<sub>5</sub>, R<sub>5</sub> is heteroaryl, so it is matching with substituent R<sup>2 </sup>(fifth position) of the generic structure.
=Other structures=
===[http://v3.espacenet.com/publicationDetails/claims?CC=WO&NR=2007070607A2&KC=A2&FT=D&date=20070621&DB=EPODOC&locale=en_EP WO2007070607]===
