MonoPOC-Et-Tenofovir is a phosphorylated ethyl ester derivative of tenofovir, featuring a substituted phosphate group linked to an ethyl chain at the terminal hydroxyl of the parent compound's cyclopropylmethyl moiety. The structure retains the core 9-(2-phosphonylmethoxypropyl)adenine scaffold but incorporates an ethyl esterification at the monophosphate site, altering its solubility and reactivity profiles. This impurity arises during synthetic processes involving esterification steps, forming via partial hydrolysis or side-reactions in API manufacturing. It serves as a critical HPLC reference standard for quantifying process-related impurities in tenofovir drug substance batches.
On RequestCCOP(=O)(CO[C@H](C)CN1C=NC2=C(N=CN=C21)N)OCOC(=O)OC(C)C
InChI=1S/C16H26N5O7P/c1-5-26-29(23,27-9-24-16(22)28-11(2)3)10-25-12(4)6-21-8-20-13-14(17)18-7-19-15(13)21/h7-8,11-12H,5-6,9-10H2,1-4H3,(H2,17,18,19)/t12-,29?/m1/s1
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