The present invention, among other things, provides compounds and compositions thereof for use in the modulation of Hsp70. In some embodiments, the present invention provides a method for inhibiting Hsp70 activity. In some embodiments, the present invention provides a method of treating a subject suffering from or susceptible to a disease, disorder, or condition responsive to Hsp70 inhibition comprising administering to the subject a therapeutically effective amount of a provided compound. In some embodiments, the present invention provides a method for treating or preventing cancer in a subject suffering therefrom, comprising administering to a patient in need thereof a therapeutically effective amount of a provided compound.
