Purine derivatives of Formula (I), wherein the meanings for the various substituents are as disclosed in the description. These compounds are useful as JAK3 kinase inhibitors.
公式(I)的嘌呤衍生物,其中各取代基的含义如描述中所披露。这些化合物可用作JAK3激酶抑制剂。
Aqueous-Phase Suzuki-Miyaura Cross-Coupling Reactions of Free Halopurine Bases
The Suzuki-Miyaura reaction of 9-unsubstituted 2-, 6-, and 8-halopurine bases with diverse aryl- and alkenylboronic acids in water-acetonitrile mixtures under microwave irradiation was used for the single-step synthesis of arylpurines. In most cases the product crystallized directly from the reaction mixture in high yields and good purity. The scope and limitations of these reactions were studied.