Hemoregulatory compounds

A compound of formula (I)

• Wherein:
• A1 and A2 are independently Z—(CH2)k—(NR′)m—;
• Z is pyridyl, and wherein the ring is substituted or unsubstituted by one or two C1-4alkyl, F, Cl, Br, I, C1-4 alkoxy, (CH2)mR4, oxo, oxime, O—C1-4alkyloxime, hydroxy, N(R3)2, acylamino or aminoacyl groups;
• R′ and R″ are independently hydrogen, C1-4alkylC(O)R4, C1-4alkyl or R′ and R″ are benzyl which is optionally substituted by one or two C1-4alkyl, C1-4alkoxy, F, Cl, I, Br, OH, or N(R3)2;
• k is independently an integer from 0 to 4;
• m is independently zero or one;
• Q is bicyclo[3.3.0]octanyl, xyleyl, benzophenonyl or 1,2,3,4-tetrahydronapthalyl;
• all of which are unsubstituted or substituted by one or more C1-4alkyl, C1-4alkoxy, halogen, mono or di C1-4alkylamino, (C1-4alkyl)2—NC(O)—, —(CH2)n—R2, —(CH2)n—R3, —(CH2)n—COR2 or —(CH2)n—COR3;
• R2 is independently —OR3, —NR32, —SR3;
• R3 is independently hydrogen, C1-4alkyl or benzyl;
• R4 is independently —OR3, —N(R3)2, —SR3;
• an
• n is independently an integer from 0 to 4;
• or a pharmaceutically acceptable salt thereof.