Ammonium Formate-Pd/C as a New Reducing System for 1,2,4-Oxadiazoles. Synthesis of Guanidine Derivatives and Reductive Rearrangement to Quinazolin-4-Ones with Potential Anti-Diabetic Activity
作者:Paola Marzullo、Sonya Vasto、Silvestre Buscemi、Andrea Pace、Domenico Nuzzo、Antonio Palumbo Piccionello
DOI:10.3390/ijms222212301
日期:——
heterocycle with wide reactivity and many useful applications. The reactive O-N bond is usually reduced using molecular hydrogen to obtain amidine derivatives. NH4CO2H-Pd/C is here demonstrated as a new system for the O-N reduction, allowing us to obtain differently substituted acylamidine, acylguanidine and diacylguanidine derivatives. The proposed system is also effective for the achievement of a
1,2,4-恶二唑是一种杂环化合物,具有广泛的反应活性和许多有用的应用。通常使用分子氢还原反应性ON键以获得脒衍生物。NH 4 CO 2 H-Pd/C在这里被证明是一种新的ON还原系统,使我们能够获得不同取代的酰基脒、酰基胍和二酰基胍衍生物。该系统还可有效实现 5-(2'-氨基苯基)-1,2,4-恶二唑还原重排为 1-烷基喹唑啉-4(1 H )-酮。生物碱糖苷也用此方法获得。初步测试了所得化合物的细胞毒性、诱导氧化应激、α-葡萄糖苷酶和 DPP4 抑制等生物活性,显示出作为抗糖尿病药物的潜在应用。