Table 2. Pharmacological Activity of the Substituted (R)-N-4-(Benzyloxy)benzyl 2-Acetamido-3-methoxypropionamide Derivatives in the Formalin Pain Model.

compd	dose (mg/kg)a	phase I (acute)b	phase II (inflammatory)b
(R)-7	5.0	41	72
(R)-8	7.0	85	103
(R)-9	12	114	98
(R)-10	8.0	66	55
(R)-1	9.0	39	63
(R)-4	5.8	77	52
(R)-5	7.0	69	49
(R)-6	NDc

^aCompounds administered to mice by ip.

^bPercent time spent licking (s) of control.

^cND = not determined.