Chemoenzymatic synthesis of piperoxan, prosympal, dibozane, and doxazosin

A Rouf, P Gupta, MA Aga, B Kumar, A Chaubey…

Index: Rouf, Abdul; Gupta, Pankaj; Aga, Mushtaq A.; Kumar, Brijesh; Chaubey, Asha; Parshad, Rajinder; Taneja, Subhash C. Tetrahedron Asymmetry, 2012 , vol. 23, # 22-23 p. 1615 - 1623

Full Text: HTML

Citation Number: 10

Abstract

The synthesis of both enantiomers of 1, 4-benzodioxan-2-carboxylic acid 1, a key synthetic intermediate for the therapeutic agents piperoxan, prosympal, dibozane, and doxazosin was achieved with good yields and high enantioselectivities via the Arthrobacter sp. lipase catalyzed kinetic resolution of ester (±)-17a. The influence of the co-solvents and the immobilization of the lipase upon kinetic resolution demonstrated that immobilized whole ...