| 摘要 |
<p>A process is described for the preparation of compounds of formula (1) <CHEM> [where OR is hydroxyl, protected hydroxyl or OP(O)(OCH2Ph)(OR<1>) (where Ph is phenyl and OR<1> is hydroxyl or protected hydroxyl)] and salts thereof, which comprises reacting a compound of formula (2) <CHEM> with a compound of formula (3) <CHEM> (where OR is as defined above and one of X<1> and X<2> is a leaving group and the other is a hydrogen atom) or a salt thereof, followed, if desired, by removal of the hydroxyl protecting group when present and/or by salt formation. The compounds of formula (1) are either anticancer agents or intermediates useful in the synthesis of anticancer agents.</p> |
