Methods of producing carboxylic acid ester derivatives and intermediates for use in the methods
申请人:FUJIREBIO Inc.
公开号:EP0643054A2
公开(公告)日:1995-03-15
Methods of producing carboxylic acid ester derivatives of formulae (I) and (II), which are useful, for instance, as intermediates for producing an anti-hypercholesterolemic agent having an inhibitory effect on HMG-CoA Reductase:
wherein R1 and R2 are independently a protective group for hydroxyl group, or R1 and R2 integrally constitute a protective group for hydroxyl groups; R3 is an alkyl group, or an aryl group; and R4 is a substituted aryl group, a substituted heterocyclic group, a substituted vinyl group, or a substituted cycloalkenyl group; and
wherein R1, R2, R3 and R4 are respectively the same as defined in the above formula (I), are disclosed. In addition, intermediates for use in these methods of producing the carboxylic acid ester derivatives are disclosed.
Methods of producing carboxylic acid ester derivatives and intermediates
申请人:Fujirebio Inc.
公开号:US05481009A1
公开(公告)日:1996-01-02
Methods of producing carboxylic acid ester derivatives of formulae (I) and (II), which are useful, for instance, as intermediates for producing an anti-hypercholesterolemic agent having an inhibitory effect on HMG-CoA Reductase: ##STR1## wherein R.sup.1 and R.sup.2 are independently a protective group for hydroxyl group, or R.sup.1 and R.sup.2 integrally constitute a protective group for hydroxyl groups; R.sup.3 is an alkyl group, or an aryl group; and R.sup.4 is a substituted aryl group, a substituted heterocyclic group, a substituted vinyl group, or a substituted cycloalkenyl group; and ##STR2## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are respectively the same as defined in the above formula (I), are disclosed. In addition, intermediates for use in these methods of producing the carboxylic acid ester derivatives are disclosed.