See image — AITS & Test Series Chemistry Question

💡 Solution & Explanation

2 H /H O   O O O Ph Ph OH OH Ph  OH Ph OH  C H3 C O CH3 Ph C O H Ph C O H dil.NaOH    C H3 C O CH3 Ph C O H Ph C O H  CH C O CH Ph CH CH Ph  P 2 NH OH  CH C N CH Ph CH CH Ph OH   Number of stereoisomers 4 