Nod1 modulators and uses thereof

A compound of formula (I), a pharmaceutically acceptable salt, solvate or stereoisomer thereof,

• wherein,
• X1 and X2 are independently nil, —NH or —(C═O);
• R1 and R3 are independently hydroxyl or alkoxy;
• R2 is —COOH or —CH2OH;
• R4 is hydrogen or C1-6 alkyl;
• R5 is hydrogen or C1-20 alkyl optionally substituted with a substituent selected from the group consisting of cycloalkyl, phenyl, biphenyl and —O-phenyl;
• and
• the phenyl, the biphenyl or the —O-phenyl is optionally substituted with one or more halo, alkyl, or alkoxy.