(2R)-3t-benzoyloxymethyl-11syn-hydroxy-2,3-dihydro-1H-2r,5c-methano-pyrimido[1,2-c][1,3,5]oxadiazepin-9-one

(3-oxo-1H-2-benzofuran-1-yl) benzoate

bis(benzoyloxymethyl)phosphorylmethyl benzoate

1-phenylbutyl benzoate

[2-(4-chlorophenyl)-2-oxoethyl] benzoate