Abstract Isoniazid is a key antitubercular agent which exhibits poor chemical stability in the solid state. Cocrystallization with hydroxyl derivatives of cinnamic acid, which themselves possesses antitubercular and antioxidant activity, may produce solid forms with improved pharmaceutical properties. The complementary nature of the functional groups of isoniazid and the chosen coformers resulted in
摘要 异烟
肼是一种重要的抗结核药物,在固态时
化学稳定性较差。与
肉桂酸的羟基衍
生物共结晶,
肉桂酸本身具有抗结核和抗氧化活性,可以产生具有改进药物特性的固体形式。异烟
肼的官能团和所选的共形成物的互补性质导致共晶形成的成功率很高。通过固态 NMR、
DSC、PXRD 和单晶 XRD 对三种以前未知的共晶形式以及一种新的多晶型物进行表征。还合成并表征了三种先前已知的共晶。观察到核磁共振
化学位移以区分涉及
肉桂酸羧酸的关键合成子。