Patent ID: 8624031

Claim:
A process for producing a compound comprising Formula (II) or salt thereof, the process comprising: a. contacting a compound comprising Formula (I) with a ring forming agent and a proton donor to form a compound comprising Formula (V); b. contacting the compound comprising Formula (V) with R 16 OCOX to form a compound comprising Formula (VI); and c. contacting the compound comprising Formula (VI) with an hydrolysis agent to form the compound comprising Formula (II) according to the following reaction scheme: wherein no intermediates are isolated and, R 1 , R 2 , R 3 , R 5 , R 8 , and R 8′ are independently chosen from hydrogen, hydrocarbyl, substituted hydrocarbyl, halogen, and {—}OR 15 ; R 4 is {—}OR 15 ; R 6 , R 7 , R 16 , and R 17 are independently chosen from hydrogen, hydrocarbyl and substituted hydrocarbyl; R 14 is chosen from hydrogen, and {—}OR 15 ; R 15 is chosen from hydrogen, hydrocarbyl, and substituted hydrocarbyl; and X is chosen from fluorine, chlorine, bromine, and iodine.