THE INVENTION RELATES TO A COMPOUND OF FORMULA (I), MORE SPECIFICALLY IN THE LEVOROTATORY FORM (1A) THEREOF, IN PARTICULAR THE FORM HAVING A ROTATORY POWER [α]D=-38.6+0.7 AT A CONCENTRATION OF 0.698 MG/ML IN METHANOL. THE COMPOUND MAY BE IN THE FORM OF A BASE OR AN ACID ADDITION SALT, IN PARTICULAR A PHARMACEUTICALLY ACCEPTABLE ACID. THE COMPOUND IS A SELECTIVE AURORA A AND B KINASE INHIBITOR AND CAN BE USED AS AN ANTICANCER DRUG.