吡嗪-2,5-二羧酸二甲酯 、
2-氨基-2-甲基-1,3-丙二醇 在
乙醇 、 solid 作用下,
以
乙醇 为溶剂,
反应 1.5h,
以200 mg of N,N′-bis(1,3-dihydroxy-2-methyl-2-propyl)pyrazine-2,5-dicarboxamide are thus obtained in the form of a white solid melting at 208° C. [1H NMR spectrum (400 MHz, CDCl3, δ at ppm): 1.34 (s, 6H: 2×CH3); 3.55 and 3.66 (2 dd, J=11 and 5.5 Hz, 8H: 4×OCH2); 5.01 (t, J=5.5 Hz, 4H: 4×OH); 8.22 (s, 2H: ═CH at 3 and ═CH at 6); 9.20 (s, 2H: 2×CONH)]的产率得到N,N'-bis[1,1-di(hydroxymethyl)-1-ethyl]pyrazine-2,5-dicarboxamide