Acyclovir-d4

Acyclovir-d4 is the deuterium labeled Acyclovir. Acyclovir (Aciclovir) is a guanosine analogue and an orally active antiviral agent. Acyclovir inhibits HSV-1 (IC50 of 0.85 μM), HSV-2 (IC50 of 0.86 μM) and varicella-zoster virus. Acyclovir can be phosphorylated by viral thymidine kinase (TK), and Acyclovir triphosphate interferes with viral DNA polymerization through competitive inhibition with guanosine triphosphate and obligatory chain termination[1][2][3]. Acyclovir prevents bacterial infections during induction therapy for acute leukaemia[4].

[1]Russak EM, et al. Impact of Deuterium Substitution on the Pharmacokinetics of Pharmaceuticals. Ann Pharmacother. 2019;53(2):211-216. |[2]Li Z, et al. Acyclovir treatment of skin lesions results in immune deviation in mice infected cutaneously with herpes simplex virus. Antivir Chem Chemother. 1999 Sep;10(5):251-7.|[3]Lönnqvist B, et al. Oral acyclovir as prophylaxis for bacterial infections during induction therapy for acute leukaemia in adults. The Leukemia Group of Middle Sweden. Support Care Cancer. 1993 May;1(3):139-44.|[4]Suzuki M, et al. Synergistic antiviral activity of acyclovir and vidarabine against herpes simplex virus types 1 and 2 and varicella-zoster virus. Antiviral Res. 2006 Nov;72(2):157-61.|[5]Benedetti S, et al. Acyclovir induces cell cycle perturbation and apoptosis in Jurkat leukemia cells, and enhances chemotherapeutic drug cytotoxicity. Life Sci. 2018 Dec 15;215:80-85.|[6]Hayashi K, et al. The role of a HSV thymidine kinase stimulating substance, scopadulciol, in improving the efficacy of cancer gene therapy. J Gene Med. 2006 Aug;8(8):1056-67.