The novel phosphoramidate derivatives of NSAID 3-hydroxypropylamides: synthesis, cytostatic and antiviral activity evaluations.

The target phosphoramidates 5a-e were prepared in one step from 3-hydroxypropyl derivatives 3a-e of nonsteroidal anti-inflammatory drugs (fenoprofen, ketoprofen, ibuprofen, indomethacin, diclofenac). The products 3a-e and 5a-e were evaluated for their cytostatic and antiviral activity against malignant tumour cell lines and normal human fibroblasts (WI 38). All phosphoramidate derivatives 5a-e possess significantly greater inhibitory activities than the corresponding 3-hydroxypropyl derivatives 3a-e, whereby compound 5a showed the most potent inhibitory activities against cervical, pancreatic and colon carcinoma cell lines (IC(50)=5-7 microM).