Agents for differentiating stem cells and treating cancer

A compound or pharmaceutically acceptable salt of:

• wherein,
• X is O, NH, S, or CH2;
• Y is O, N—R1, N—CH2—R1, CH—R1, or CH—CH2—R1;
• R0 is H, or C1-C5 alkyl;
• R1 is H, C1-C5 alkyl, optionally substituted aryl, or optionally substituted heteroaryl;
• R2 is H, or optionally substituted aryl;
• R3 is H or C1-C3 alkyl;
• m is 0 or 1;
• and
• n is 0 or 1,
• where “substituted” means substituted with one or more substituents independently selected from halogen, trifluoromethyl, methylcarboxy, ethylcarboxy, C1-C6 alkoxy, C1-C6 alkyl, —OH, —SH, —NH2, —N3, —CN, —NO2, —CHO, —COOH, —CONH2, —C(═NH)NH2, or —SO3H;
• wherein,
• R0 is H or C1-4 alkyl;
• X is O, NH or CH2;
• and
• Y is N or CH;
• wherein,
• R0 is H or C1-4 alkyl;
• and
• X is O, NH or CH2;
• or
• wherein,
• R0 is H or C1-4 alkyl;
• and
• X is O, NH or CH2.