What are the functional groups present in the structural formula of cocaine ?

Answer 1

To be a little more specific, the cocaine molecule contains:

a phenyl group

two carboalkoxy groups (ester class), but also contain two carbonyl groups which may act independent of the ester

an amine

BTW, the N is part of a bicyclic heptane ring

Answer 2

Looking at Cocaine's structure, 1 see 2 ester units, a tertiary amine (bridging a cyclohexane) and a phenyl ring at the end of one of the esters.