Show product (s) with correct sterochemistry formed when binding B reacts with bromine (Br2).?

The epoprostenol derivative (7) is an agent that has recently been synthesized and is intended to be used as an anticoagulant
in the treatment of thrombosis.
7 contains a double bond that is reactive.
d) Show product (s) with correct sterochemistry formed when binding B reacts with bromine (Br2).
If there are several products, state which are major and which are minor products 

2017-04-11T00:37:33.809Z