R306465 is a novel hydroxamate-based histone deacetylase (HDAC) inhibitor with broad-spectrum antitumour activity against solid and haematological malignancies in preclinical models.
SW-100, a selective histone deacetylase 6 (HDAC6) inhibitor with an IC50 of 2.3 nM, shows at least 1000-fold selectivity for HDAC6 relative to all other HDAC isozymes.
ACY-957 is an orally active and selective inhibitor of HDAC1 and HDAC2, with IC50s of 7 nM, 18 nM, and 1300 nM against HDAC1/2/3, respectively, and shows no inhibition on HDAC4/5/6/7/8/9.