Microbial hydroxylation of 2-cycloalkylbenoxazoles. Part II. Determination of product structures and enhancement of enantiomeric excess
作者:A. de Raadt、H. Griengl、M. Petsch、P. Plachota、N. Schoo、H. Weber、G. Braunegg、I. Kopper、M. Kreiner、A. Zeiser
DOI:10.1016/0957-4166(96)00031-6
日期:1996.2
The determinations of product structures obtained in the microbial hydroxylations of various 2-cycloalkyl-1, 3-benzoxazoles using Cunninghamella blakesleeana DSM 1906 and Bacillus megaterium DSM 32 are described. The initially low e.e. of 3-(benz-1, 3-oxazol-2-yl)cyclopentan-1-ol 6, 2-(benz-1, 3-oxazol-2-yl)cyclohexan-1-ol 14 and 4-(2-bent-1, 3-oxazol-2-yl)cycloheptan-1-ol 21 can be enhanced to 98% using lipase catalyzed resolution.