JAK inhibitor compounds, methods for synthesizing same and use thereof

A compound of formula (I), a salt thereof, or an enantiomer thereof,

• wherein:
• R1 is a hydrogen atom, an alkyl radical, a substituted alkyl radical, an alkenyl radical, a substituted alkenyl radical, an alkynyl radical, a substituted alkynyl radical, an aralkyl radical, a substituted aralkyl radical, an alkoxy radical, an amine radical, a substituted amine radical, a cyclic amine radical, a substituted alkoxy radical, a heterocyclic radical, a substituted heterocyclic radical, a cycloalkyl radical, a substituted cycloaklyl radical, a heteroaralkyl radical, a substituted heteroaralkyl radical, or a heterocyclic amine radical;
• R2 is a hydrogen atom, an alkyl radical or a substituted alkyl radical, an alkenyl radical, a substituted alkenyl radical, an alkynyl radical, a substituted alkynyl radical, an aryl radical, a substituted aryl radical, a heterocyclic radical, or a substituted heterocyclic radical;
• R3 is a hydrogen atom, an alkyl radical, a substituted alkyl radical, an alkenyl radical, a substituted alkenyl radical, an alkynyl radical, a substituted alkynyl radical, an alkoxy radical, a haloalkyl radical, a halogen, —CN, —NO2, —SRa, —S(O)2Rb, —S(O)Rb, —S(O)NRcRd, —CHO, —C(O)Rb, —C(O)ORa, —C(O)NRcRd, —NRcRd, —NRcC(O)Rb, —NRcC(O)ORa, —NRcC(O)NRcRd, —NRCS (O)Rb, —NRCS(O)2Rb, —NRCS(O)2NRcRd, —OC(O)Rb, and —OC(O)NRcRd;
• each of Ra, Rc and Rd is independently selected from a hydrogen atom, an alkyl radical, a substituted alkyl radical, an alkenyl radical, a substituted alkenyl radical, an alkynyl radical, a substituted alkynyl radical, and a haloalkyl radical;
• each Rb is independently selected from a halogen, an alkyl radical, a substituted alkyl radical, an alkenyl radical, a substituted alkenyl radical, an alkynyl radical, a substituted alkynyl radical, and a haloalkyl radical;
• and
• n is an integer from 0 to 5.