There are provided compounds of the formula
and pharmaceutically acceptable salts and esters and enantiomers thereof wherein W, X, X′, Y, V, V′, A, B and R are as described herein.
The compounds have utility as antiproliferative agents, especially, as anticancer agents.
There are provided compounds of the formula
and pharmaceutically acceptable salts and esters and enantiomers thereof
wherein X, Y, V, R
1
, R
2
and R are as described herein.
The compounds have utility as antiproliferative agents, especially, as anticancer agents.