1375466-18-4

Biodistribution profiles of ACY-738, ACY-775, and tubastatin A are examined after acute dosing at 5 or 50?mg/kg over 2?h. At t=30?min after acute 50?mg/kg injection, respective plasma levels of ACY-738 and ACY-775 are 515?ng/mL (1.9?μM) and 1359?ng/mL (4.1?μM). Elimination from plasma is rapid, with plasmatic half-life of 12?min and concentration below 10?ng/mL after 2?h. Nevertheless, areas under concentration time curves for brain and plasm calculated over 2?h for both ACY-738 and ACY-775 lead to ratios >1. When ACY-738 (5?mg/kg) or ACY-775 (50?mg/kg) are administered repeatedly in wild-type mice at 24?h, 4?h, and 30?min before killing, significant increases in α-tubulin acetylation are observed in all tested brain regions^[2].