2results about How to "Reduced inhibitory activity" patented technology

This invention discloses a benzamide / benzenesulfonamide compound containing an aryl butanone structure, its preparation method, and its application, belonging to the field of medicinal chemistry. The structure of the benzamide compound containing the aryl butanone structure is as follows: R1 is hydrogen, halogen, alkyl, or alkoxy; R2 is tert-butyl, tert-pentyl, tert-octyl, adamantyl, or α,α-dimethylbenzyl; R3 is hydrogen, halogen, alkyl, alkoxy, fused ring, or aryl; R4 is hydrogen, alkyl, or aryl. The structure of the benzenesulfonamide compound containing the aryl butanone structure is as follows: R1 is hydrogen, halogen, or alkyl; R2 is tert-butyl, tert-pentyl, or tert-octyl; R3 is hydrogen, halogen, alkyl, or fused ring. The advantages of this invention are that some of the prepared compounds exhibit strong inhibitory effects on MCF-7 and HCT-116, and can be used as lead compounds for the subsequent preparation and development of antitumor drugs.

The present application relates to a kind of pyrazolo [1, 5-a] pyridine compound and its preparation method and application, including the pharmaceutical composition of active ingredient or its pharmaceutically acceptable salt of the compound described herein.The present application further relates to the compound of formula (I) in for treating and preventing the disease that can be treated with wild type, gene fusion type and mutant (including but not limited to G804 and G810) RET kinase inhibitor, including the disease or condition mediated by RET kinase.