摘要:
The present invention relates to biocatalytic asymmetric reduction for the preparation of 2-amino-[5-(1-hydroxy-2-hydroxy or halogen-ethyl)]-pyrazine derivatives of the formula wherein R is lower alkylcarbonyl or an amino protecting group and R1 is hydroxy or halogen. The compounds are key intermediates in the manufacture of a glucokinase activator.
摘要:
The present invention relates to biocatalytic asymmetric reduction for the preparation of 2-amino-[5-(1-hydroxy-2-hydroxy or halogen-ethyl)]-pyrazine derivatives of the formula wherein R is lower alkylcarbonyl or an amino protecting group and R1 is hydroxy or halogen. The compounds are key intermediates in the manufacture of a glucokinase activator.
摘要翻译:本发明涉及用于制备下式的2-氨基 - [5-(1-羟基-2-羟基或卤代 - 乙基)] - 吡嗪衍生物的生物催化不对称还原:其中R是低级烷基羰基或氨基保护基, R 1是羟基或卤素。 这些化合物是制造葡糖激酶活化剂的关键中间体。
摘要:
The invention relates to a scalable biocatalytic process for the preparation of S-1,1,1-trifluoro-2-propanol with a enantiomeric excess of >99% by asymmetric microbial reduction of 1,1,1-trifluoroacetone with Baker's yeast.
摘要:
The present invention is concerned with novel hydroxy-methyl isoxazole derivatives of formula I wherein R1, R2 and R3 are as described herein, as well as pharmaceutically acceptable salts and esters thereof. The active compounds of the present invention have affinity and selectivity for GABA A α5 receptor. Further the present invention is concerned with the manufacture of the active compounds of formula I, pharmaceutical compositions containing them and their use as pharmaceuticals.
摘要:
The present invention is concerned with novel hydroxy-methyl isoxazole derivatives of formula I wherein R1, R2 and R3 are as described herein, as well as pharmaceutically acceptable salts and esters thereof. The active compounds of the present invention have affinity and selectivity for GABA A α5 receptor. Further the present invention is concerned with the manufacture of the active compounds of formula I, pharmaceutical compositions containing them and their use as pharmaceuticals.