Thienopyrrole compounds and uses thereof

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

• wherein:
• the dashed line represents the presence or absence of a bond;
• n is 0, 1, 2, 3, 4 or 5;
• X is CH, N, O, or S;
• wherein, when the dashed line represents the presence of a bond, X is CH or N, and
• when the dashed line represents the absence of a bond, X is O or S;
• A is an optionally substituted phenyl ring, or an optionally substituted 5or 6-membered heteroaryl ring;
• R1 is selected from the group consisting of hydrogen, optionally substituted C1-C8 alkyl, optionally substituted aryl, optionally substituted heteroaryl, optionally substituted arylalkyl, optionally substituted alkoxyalkyl and optionally substituted alkoxyalkoxyalkyl;
• R2 is phenyl substituted with one substituent selected from the group consisting of C1-C4 alkyl, cyano, amido, C1-C4 alkoxy, and hydroxyalkyl;
• and
• R3 and R4 are each independently selected from the group consisting of hydrogen, optionally substituted C1-C8 alkyl, optionally substituted C3-C8-cycloalkyl, optionally substituted C3-C8-cycloalkylalkyl, optionally substituted aryl, optionally substituted arylalkyl, optionally substituted heteroaryl, optionally substituted heteroarylalkyl, optionally substituted heterocyclyl, and optionally substituted heterocyclylalkyl;
• or R3 and R4, together with the nitrogen atom to which they are attached, together form an optionally substituted ring.