| http://www.w3.org/ns/prov#value | - According to one general purpose (1), a compound of general formula (I) may be obtained by reaction of a compound of general formula (II): ##STR6## (wherein Z represents a group ##STR7## R12 and R13 is each a hydrogen atom or a protecting group, and L represents a leaving group, for example a halogen atom such as chlorine, bromine or iodine, or a hydrocarbylsulphonyloxy group such as methanesulpho
|
