| 摘要 |
A process for preparing 1,2-dihydro-2-oxo-5-(pyridinyl) nicotinonitriles by reacting alpha -(pyridinyl)- beta -[di-(lower-alkyl)amino]acrolein with malononitrile in a lower-alkanol. The products are useful as cardiotonic agents and, also, as intermediates for preparing corresponding 3-amino-5-(pyridinyl-2(1H)-pyridinones, in turn, useful as cardiotonic agents. |
