Synthesis of new azaindeno-acetonitrile derivative with inotropic activity against heart failure model

Several steroid derivatives have prepared as inotropic drugs; however, there are few reports on azaindeno-steroid derivatives with inotropic activity. The objective of this investigation was to prepare some azaindeno-acetonitrile derivatives (compounds 3 to 7) to evaluate their biological activity on left ventricular pressure. The first step was achieved by preparation of azaindeno-steroid derivatives using reactions of etherification and addition. The second stage involves the evaluation of biological activity from azaindeno-steroid derivatives on left ventricular pressure in a heart failure model using either estrone or an enone-steroid derivative (compound 2) as controls. The results showed that only compound 6 increases left ventricular pressure compared with estrone, compounds 2-5 and 6. In conclusion, the positive inotropic effect exerted by compound 6 depends on the functional groups involved in its chemical structure.