US20230159500A1
University of Texas System
A compound according to Formula (I) or a pharmaceutically acceptable salt thereof:is provided. X1 is N or C-Y; Y is H, halogen, NH2, OH, SH, alkyl, aryl, alkoxy, or aryloxy; A is O, NH, S, Se, or CH2,B isX2 is N or CH; and Z is NH, CH2, S, O, or Se.