(E)-but-2-enedioic acid; 6-ethyl-3-[3-methoxy-4[4-(4-mehytlpiperazin-1-yl)piperidin-1-yl]anilino]-5-(oxan-4-ylamino)pyrazine-2-carboxamide
(E)-but-2-enedioic acid; 6-ethyl-3-[3-methoxy-4[4-(4-mehytlpiperazin-1-yl)piperidin-1-yl]anilino]-5-(oxan-4-ylamino)pyrazine-2-carboxamide