urgent chem help!!

[Jaspreet Dhaliwal]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Chemistry (9701)/9701_w11_qp_23.pdf

For question 4 b ii)
can someone explain how to do question 5 d i) ? please

 

[emogurl_gl]

http://www.mhhe.com/physsci/chemistry/carey/student/olc/ch19reactioncarboxylicacids.html

Search for cyclic ester