The present invention discloses novel silicon incorporated quinolines of formula (I) Wherein, X, Y, A, R1 and R2 are as described process for the preparation of silicon incorporated quinolines of formula (I) a pharmaceutical composition comprising silicon incorporated quinolines of formula (I) or pharmaceutically acceptable salt thereof and a method for treating diseases caused by Plasmodium falciparum or other coccidian parasites, wherein said method comprises administering to the subject a therapeutically effective amount of silicon incorporated quinolines of formula (I) or pharmaceutically acceptable salt thereof.
