Chemo-enzymatic synthesis of (R)-(+)-aminoglutethimide by kinetic resolution of (±)-4-cyano-4-phenyl-1-hexanol

Add time:09/07/2019    Source:sciencedirect.com

Chemo-enzymatic approaches for the synthesis of the family of aromatase inhibitory drug via lipase-catalyzed kinetic resolution of (±)-4-cyano-4-phenyl-1-hexanol (2) as appropriate precursors were described. Enzymatic transesterification of primary alcohol (±)-2 using Pseudomonas cepacia (Amano PS, PCL) provided the enantiopure alcohol (R)-(−)-2 with 99% ee at conversion of 86%, while that of (±)-2 using Pseudomonas fluorescens (Amano AK, LAK) provided the (S)-(+)-2 with 96% ee at conversion of 86%. Chemical transformation of substrate (R)-(−)-2 gave (R)-(+)-aminoglutethimide (1) in enantioselectively high yield.

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