Patent ID: 8241606

Claim:
A method of preparing a compound of formula (II) comprising the steps; (i) adding a photolabile protecting group, R, to an aminoxy group to give formula (I) wherein the R denotes CO 2 Bn(CBz), CH 2 C 6 H 4 -m-NO 2 , CO 2 C 2 6H 4 -m-NO 2 , CO 2 CH(Ph)C 6 H 4 -o-NO 2 , SO 2 Bn, CO 2 C(Me) 2 -3,5-(MeO) 2 C 6 H 3 , or CO 2 CH 2 -3,5-(MeO) 2 C 6 H 3 , Bn denotes benzyl group, CBz denotes benzyloxycarbonyl group, and Ph denotes a phenyl, (ii) illuminating compound (I) with a light in an automated radiosynthesis apparatus to form a compound of formula (II),