Patent ID: 11891391
Assignee: PURDUE RESEARCH FOUNDATION
Field: Organic fine chemistry (Chemistry)
Classification: CPC C | IPC A  C

Claim 2:
3. A compound having a formula, or a pharmaceutically acceptable salt thereof, wherein n is 3; the bonding between A and B and bonding between B and D can be a single bond or a double bond, but both bonds between A and B and between B and D cannot be a double bond at the same time; A, B, and D each represent, independently, C, O, N, or S, wherein at least one of A, B, and D is a heteroatom;
R1 is heterocyclyl or heteroaryl either of which is optionally substituted;
R4 represents two substituents, each independently selected from the group consisting of hydrogen, deuterium, halo, azido, cyano, nitro, hydroxy, amino, thio, carboxy, ester, amide, acyl, sulfoxyl, sulfonyl, phosphate, phosphoryl, alkyl, alkenyl, alkynyl, heteroalkyl, heteroalkenyl, heteroalkynyl, heterocyclyl, cycloalkyl, cycloalkenyl, cycloheteroalkyl, cycloheteroalkenyl, aryl, heteroaryl, arylalkyl, arylalkenyl, and arylalkynyl, each of which is optionally substituted;
or the two substituents are taken together with the attached carbons to form an optionally substituted cyclic or heterocyclic moiety;
depending on A, B, and D, R5 represents two or three substituents, each independently selected from the group consisting of hydrogen, deuterium, halo, azido, cyano, nitro, hydroxy, amino, thio, carboxy, ester, amide, acyl, sulfoxyl, sulfonyl, phosphate, phosphoryl, alkyl, alkenyl, alkynyl, heteroalkyl, heteroalkenyl, heteroalkynyl, heterocyclyl, cycloalkyl, cycloalkenyl, cycloheteroalkyl, cycloheteroalkenyl, aryl, heteroaryl, arylalkyl, arylalkenyl, and arylalkynyl, each of which is optionally substituted; and
R6 represents four substituents, each independently selected from the group consisting of hydrogen, deuterium, halo, azido, cyano, nitro, hydroxy, amino, thio, carboxy, ester, amide, acyl, sulfoxyl, sulfonyl, phosphate, phosphoryl, alkyl, alkenyl, alkynyl, heteroalkyl, heteroalkenyl, heteroalkynyl, heterocyclyl, cycloalkyl, cycloalkenyl, cycloheteroalkyl, cycloheteroalkenyl, aryl, heteroaryl, arylalkyl, arylalkenyl, and arylalkynyl, each of which is optionally substituted.