Looks difficult. HOw do you prepare your starting compound?

Assuming that you have this starting material: COOH is a de-activating m- directing group while CH2NH2 are o- & p- directing. The o- positions of COOH are open to electrophilic substitution reaction so transferring the COOH to COOR where: R is a bulky group e.g. t-butyl may block these o- positions. Halogenation reaction then might occurs at the o- position lying between the two aminomethyl groups. Replacing X by OH group could take place by many methods; see

http://www.organic-chemistry.org/synthesis/C1O/phenols.shtm

and references therein

*You may need to protect the amino groups if they are going to interfere in the reaction then de-protect later as you will do with the ester

Good luck

@ Adel Amer: Thank you sir.