| http://www.w3.org/ns/prov#value | - b.1 is an alkyl group, preferably C.sub.1-6 alkyl group, an aralkyl group, preferably C.sub.7-18 aralkyl group or an aryl group, preferably C.sub.6-26 aryl group; R.sub.2 is an alkyl group, preferably C.sub.1-6 alkyl group; and n is 1 or 2, byallowing a source containing enzyme capable of asymmetrically hydrolyzing ester to act on the ester represented by the formula: ##STR4## wherein R.sub.1, R.s
|
