| abstract |
A method of suppressing a subject's immune response, a method of treating a subject's neoplasm, or a method of treating a subject's fibroproliferative vascular disease, comprising formula (A) (wherein R 1 and R 2 respectively present are optional, R 1 and R 2 are alkyl, substituted alkyl, heteroalkyl, cycloalkyl, substituted cycloalkyl, heterocycloalkyl, substituted heterocycloalkyl, aryl, substituted aryl, heteroaryl 2- (4-piperazinyl) -substituted 4H-1-benzopyran-4-one compounds having the structure of: independently selected from substituted heteroaryl, alkoxy, halogen, hydroxy, or amino, or a pharmaceutically acceptable salt thereof Disclosed herein is a method comprising administering to a subject a therapeutically effective amount of a salt to be administered. |