Patent ID: 8785680

Claim:
A method for producing a compound of formula (I) comprising reacting a compound of formula (VI) with a compound of formula (VII) under conditions to form the compound of formula (I), wherein R 1 , R 2 , R 4 , R 5 , R 6 and R 7 are independently selected from the group consisting of hydrogen, unsubstituted or substituted C 1 -C 10 alkyl, unsubstituted or substituted C 1 -C 10 alkenyl, unsubstituted or substituted C 1 -C 10 alkynyl, unsubstituted or substituted C 3 -C 8 cycloalkyl, unsubstituted or substituted C 1 -C 10 alkoxy, unsubstituted or substituted C 3 -C 8 cycloalkoxy, unsubstituted or substituted C 6 -C 14 aryl, an unsubstituted or substituted 5- to 10-membered heteroaryl wherein 1 to 4ring atoms are independently selected from nitrogen, oxygen or sulfur, an unsubstituted or substituted 5- to 10-membered heteroalicyclic ring wherein 1 to 3 ring atoms are independently nitrogen, oxygen or sulfur, —C(O)R , —C(O)OR , —C(O)NRR′, —NRR′, —S(O) 2 R, —S(O) 2 OR, and —S (O) 2 NRR′, R and R′ are independently selected from the group consisting of hydrogen and unsubstituted or substituted C 1 -C 10 alkyl, unsubstituted or substituted C 1 -C 10 alkenyl, unsubstituted or substituted C 1 -C 10 alkynyl; or a tautomer, geometrical isomer, enantiomer, diastereomer, racemate form, pharmaceutically acceptable salt or prodrug thereof.