Patent ID: 8367659

Claim:
An oxazinyl isoflavonoid compound of the general formula (I): wherein R 1 is alkyl, cycloalkyl, arylalkyl, alkenyl, alkynyl, aryl or alkylaryl, R 2 , R 3 and R 4 are independently hydrogen, hydroxy, OR 9 , OC(O)R 9 , OSi(R 10 ) 3 , alkyl, cycloalkyl, aryl, arylalkyl, thiol, alkylthio, nitro, cyano or halo, R 5 is hydrogen, alkyl, cycloalkyl, aryl, arylalkyl, nitro, cyano or halo, R 6 is hydrogen, alkyl, cycloalkyl, aryl, arylalkyl, nitro, cyano or halo, R 7 is hydrogen, alkyl, cycloalkyl, aryl or arylalkyl, R 8 is hydrogen, alkyl, cycloalkyl, aryl, arylalkyl, nitro, cyano or halo, R 9 is alkyl, aryl or arylalkyl, R 10 is independently alkyl or aryl, X is O, N 12 where R 12 is alkyl, aryl or arylalkyl, or S, and the drawing represents either a single bond or a double bond, which hydrocarbon substituents can be optionally substituted by one or more of alkyl, halo, acyloxy, hydroxy, alkoxy, silyloxy, nitro and cyano, and which compounds include pharmaceutically acceptable salts thereof.