HWC 10 is an intermediate in the synthesis of rac erythro-9-(2-Hydroxy-3-nonyl)adenine Hydrochloride Salt (H825550), which is a potent inhibitor of phosphodiesterase II (PDE II) (IC50=800nM). Does not inhibit other PDE isozymes (IC50>100uM). Inhibits the retrograde transport motor, dynein. Also inhibits adenosine deaminase (Ki=4nM). Potent PDE-2 inhibitor.