| http://www.w3.org/ns/prov#value | - which is subjected to removal of the protecting group Pr to give the compound of formula (Ib), wherein the compound (Ib) is the Z - isomer, or b) is alkylated with an alkylating reagent of the formula X-CH2-COOR, wherein X is Cl, Br, I, mesyloxy or tosyloxy, and R is an alkyl, to give a compound of formula (V)
|
