Patent ID: 7671220

Claim:
A process for the preparation of a compound having the Formula I: wherein: R 1 , R 2 , R 3 , R 4 , R 7 and R 8 are each, independently, selected from the group consisting of H, halogen, C 1-6 alkyl, C 1-6 alkoxy, C 1-3 perhaloalkyl and C 1-6 perhaloalkoxy; wherein said C 1-6 alkyl and said C 1-6 alkoxy are each optionally substituted with up to five substitutents, independently, selected from the group consisting of halogen, phenyl, aryl, tertiary amines, optionally protected hydroxyl, optionally protected hydroxyl and optionally protected amino; R 5 and R 6 are each independently C 1-12 alkyl or C 3-12 alkenyl, each of which is optionally substituted with up to five substitutents, independently, selected from the group consisting of halogen, phenyl, aryl, tertiary amines, optionally protected hydroxyl, and optionally protected amino; comprising: a) reacting a compound of Formula II: with a C 1-12 alkyl halide or C 3-12 alkenyl halide in the presence of a metal alkoxide for a time and under conditions effective to form the compound of Formula I.