Phosphate derivatives of RORgamma modulators and uses thereof

A compound having the following formula (I):

• or a stereoisomer or a pharmaceutically acceptable salt thereof
• wherein:
• A is a ring of the following formula (a):
• in which:
• B represents a NH group;
• an oxygen atom;
• or a SO2 group,
• R7 represents a hydrogen, a halogen, or a (C1-C6)alkyloxy group, and
• R8 represents a hydrogen or a (C1-C6)alkyl group,
• R1a and R1c represent independently a hydrogen, a (C1-C6)alkyl group, a (C1-C6)alkyloxy group, a halogen, or a heterocycloalkyl optionally substituted by a (C1-C6)alkyl group;
• R2 represents a (C1-C6)alkyl group or a ring selected from the group consisting of a cycloalkyl, a heterocycloalkyl, an aryl, and a heteroaryl, said ring being optionally substituted by at least one radical selected from the group consisting of a (C1-C6)alkyl group, and a halogen;
• R3 and R3′ represent independently a hydrogen or a (C1-C6)alkyl group, or
• R3 and R3′ may form together, with the carbon atom to which they are attached, a cycloalkyl;
• X represents a (C1-C6)alkyl group;
• and
• R5 and R6 represent independently a hydrogen or a (C1-C6)alkyl group.