| abstract |
The present invention relates to processes for the preparation of any of the intermediate 1,3-substituted indenes of the formulae (Ia), (Ib) and (Ic) or a mixture thereof: n nwherein R 1 , R 2 , R 3 , R 4 , and R 5 are defined herein. Compounds of formulae (Ia), (Ib) and (Ic) or mixtures thereof are useful in the preparation of compounds of formula (II):n n nwherein R 2 , R 3 and R 6 are also defined herein. |