Table 1.

Inhibition of E. coli H6-DXR.

Compounds	IC50 (nM)
fosmidomycin, 3a	42
FR-900098, 3b	4
4a	180 **
4b	48 **
fosfoxacin, 5a	342 *
5b	77 *
6a	2600 *
6b	46 *
9a	-
9b	9
10a	4600
10b	17

Mean from at least 2 different assays. Errors were <5%. * and ** values obtained from references [9] and [8] respectively.