The present invention is directed to a process for the production of compounds of the formulae.
1
from a compound of the formula
2
comprising hydroxylating a compound of the formula I in the presence of an enzyme produced by a microorganism of the genera Cunninghamella species or Aspergillus.
Preferred microorganisms are
Cunninghamella echinulata
var. elegans and
Aspergillus flavipes.
Mixtures of compounds of formulae II and III may also be highly enriched in their composition of compound II by using the enzyme from
Cunninghamella echinulata
ATC
8688
b.
本发明涉及一种从式子2的化合物中,通过在Cunninghamella属或Aspergillus属微
生物产生的酶的存在下,对式子I的化合物进行羟基化,制备式子1的化合物的方法。首选微
生物是Cunninghamella echinulata var. elegans和Aspergillus flavipes。通过使用来自Cunninghamella echinulata ATC8688b的酶,化合物II和III的混合物也可以在其
化学组成中高度富含化合物II。