Patent ID: 8067596

Claim:
A process for preparing compound 2-1, the process comprising contacting compound 2-1 (a) with a halogen, X, to form compound 2-1(b), and contacting compound 2-1(b) with a proton acceptor to form compound 2-1 according to the reaction scheme: wherein: R 1 and R 2 are independently selected from the group consisting of hydrogen, hydrocarbyl, substituted hydrocarbyl, and a protecting group; R 5 , and R 6 are independently selected from the group consisting of hydrogen, halogen, hydroxyl, NH 2 , CN, hydrocarbyl, and substituted hydrocarbyl; R 7 is selected from the group consisting of hydrogen and hydroxyl; and Y is selected from the group consisting of oxygen, sulfur, and nitrogen.