Enantiomerically pure alkylphosphonate compounds RR′ P (O) PNP (R= CnH2n+ 1, R′= OY with Y= Cn′ H2n′+ 1 with n= n′ or n≠ n′; PNP= p-nitrophenoxy) noted (RY), mimicking the transition state occurring during the carboxyester hydrolysis were synthesized and investigated as potential inhibitors of human gastric lipase (HGL) and human pancreatic lipase (HPL). The inhibitory properties of each enantiomer have been tested with the ...