
Chemical and Pharmaceutical Bulletin p. 863 - 868 (1997)
Update date:2022-08-02
Topics:
Ebiike, Hirosato
Maruyama, Kaori
Yamazaki, Yukiyoshi
Hirose, Yoshihiko
Kariya, Kinya
Sasaki, Ikuharu
Kurono, Yoshiaki
Terao, Yoshiyasu
Achiwa, Kazuo
Chiral 4-aryl-1,4-dihydro-2,6-dimethyl-3,5-pyridinedicarboxylates and 1,4-dihydro-2,4,6-trimethyl-3,5-pyridinedicarboxylate have been obtained in 80-99%ee by lipase catalyzed hydrolysis of bis(acyloxymethyl) 1,4-dihydro- 3,5-pyridinedicarboxylate in an H2O/organic solvent system. These chiral dihydropyridines were readily converted into chiral drugs, such as nicardipine, felodipine and PCA 4248.
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