| 摘要 |
A method for preparing a 7-quinolynyl-3,5-dihydroxyhept-6-enoate useful as an intermediate for pharmaceuticals, in high yield and in high purity, is presented. It is a method for preparing a 7-quinolinyl-3,5-dihydroxyhept-6-enoate represented by the formula (IV): <CHEM> (wherein R represents an alkyl group or an aryl group), characterized in that a compound represented by the formula (I): <CHEM> (wherein R is as defined above), or a compound represented by the formula (II): <CHEM> (wherein R is as defined above), is reduced by sodium borohydride in the presence of a boron compound represented by the formula (III): R'OBR"2 (wherein R' and R" represent independently an alkyl group), and then the resultant reaction mixture is treated with an aqueous solution of hydrogen peroxide. |
