Patent ID: 8680278
Filing Date: 2014-03-25
Classification: B01J,C07D

Abstract:
1. A process for preparing a compound of Formula (Ia) and intermediates thereof: comprising the steps of: Step 1. reacting a Compound C1 with: Step 2. reacting Compound C3 with: Step 3. separating each of Compound C4 and Compound C5 from the isomeric mixture; Step 4. optionally dehydrogenating Compound C5 to Compound C3, and then repeating Step 2 using said dehydrogenated Compound C3 as the starting material; Step 5. deprotecting the Compound C4 to provide a Compound C6: Step 6. reacting Compound C6 with a Compound C7 to provide a Compound C8: Step 7. converting Compound C8 to the compound of Formula (Ia).