4,4-二甲氧基-2-丁酮 、 3-氨基-5-叔丁氧羰基-吡咯并[3,4-C]吡唑 以
溶剂黄146 为溶剂,
反应 2.17h,
以to afford the title compound as a 5:3 mixture with tert-butyl 2-methyl-7H-pyrrolo[3′,4′:3,4]pyrazolo[1,5-a]pyrimidine-8(9H)-carboxylate的产率得到tert-butyl 4-methyl-7H-pyrrolo[3',4':3,4]pyrazolo[1,5-a]pyrimidine-8(9H)-carboxylate
参考文献:
名称:
Tricyclic heteroaromatic compounds as dipeptidyl peptidase-IV inhibitors for the treatment or prevention of diabetes
TRICYCLIC HETEROAROMATIC COMPOUNDS AS DIPEPTIDYL PEPTIDASE-IV INHIBITORS FOR THE TREATMENT OR PREVENTION OF DIABETES
申请人:Cox Jason M.
公开号:US20100056550A1
公开(公告)日:2010-03-04
The present invention is directed to novel substituted tricyclic heteroaromatic compounds of structural formula (I) which are inhibitors of the dipeptidyl peptidase-IV enzyme and which are useful in the treatment or prevention of diseases in which the dipeptidyl peptidase-IV enzyme is involved, such as diabetes and particularly Type 2 diabetes. The invention is also directed to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the prevention or treatment of such diseases in which the dipeptidyl peptidase-IV enzyme is involved.