Construction of a six-membered fused N-heterocyclic ring via a new 3-component reaction: synthesis of (pyrazolo)pyrimidines/pyridines
作者:P. Mahesh Kumar、K. Siva Kumar、Pradeep Kumar Mohakhud、K. Mukkanti、R. Kapavarapu、Kishore V. L. Parsa、Manojit Pal
DOI:10.1039/c1cc16418j
日期:——
A conceptually new three-component reaction was developed to construct a six-membered fused N-heterocyclic ring affording (pyrazolo)pyrimidines/pyridines as potential inhibitors of PDE4. The reaction is catalyzed by triflic acid in acetic acid in the presence of aerial oxygen.