indazole synthesis Secrets
Substitution at R3 which has a halogen or alkoxy group (74f–74i) triggered a slight rise in cellular potency With all the halide analogs (74g–h) displaying highest the potency in the group. Further optimization triggered the discovery of 74i–j, with 74k as essentially the most active compound in the sequence (pIC50 = 6.seventy seven) with exc