Patent ID: 8080661

Claim:
A process for the preparation of a compound comprising Formula (II) from a compound comprising Formula (I) according to the following reaction: wherein: the alkylating agent is selected from the group consisting of alkyl halide represented by the formula R 17 X, and dialkyl sulfate represented by the formula R 17 2 SO 4 , wherein R 17 is selected from the group consisting of hydrocarbyl and substituted hydrocarbyl, and X is selected from the group consisting of Cl, Br and I; R 1 , R 2 , R 3 , and R 4 are independently selected from the group consisting of hydrogen, halogen, hydroxyl, SH, —SR 1611 , —OR 1611 , and —NR 1611 R 1612 ; hydrocarbyl, and substituted hydrocarbyl; R 5a , R 5b , R 6a , R 6b , R 7a , R 7b , R 8a R 8b , R 9 , R 10a R 10b , R 15a R 15b , R 16a R 16b , and R 14 are independently selected from the group consisting of hydrogen, halogen, hydroxyl, SH, —SR 1611 , —OR 1611 , and —NR 1611 R 1613 ; hydrocarbyl, and substituted hydrocarbyl, wherein any pair of R #a and R #b wherein # is any one of 5, 6, 7, 8, 9, 10, 15, 16, optionally together form a group selected from the group consisting of ═O, ═S, and ═NR 1613 ; R 1611 , R 1612 and R 1613 are independently selected from the group consisting of hydrocarbyl, and substituted hydrocarbyl; provided that one or more of R 1 , R 2 , R 3 , R 4 , R 5a , R 5b , R 6a , R 6b , R 7a , R 7b , R 8a R 8b , R 9a , R 10a R 10b , R 15a R 15b , R 16a R 16b , and R 14 may come together to form one or more carbocyclic or heterocyclic rings.