1. A composition comprising a compound having the structure:! ! or any stereoisomer or tautomer thereof, or any pharmaceutically acceptable prodrug, salt or solvate thereof, where! - each R1, R2, R3, R4 and R5 independently represents —H, —D, a substituent that is optionally deuterated, or a group Q:! ; ! - each R6, R7, R8, R9, R10, R14, R15, R16 and R19 independently represents —H, —D or a substituent that is optionally deuterated; and! - each R11, R12, R13, R17 and R18 independently represents —H, —D or halogen; where! - one of R1, R2, R3, R4 and R5 represents a group Q; and! at least one of R1-R19 is -D or includes -D, wherein said composition has an isotopic enrichment coefficient for deuterium of at least 5.! 2. The composition according to claim 1, where one of R1, R2, R3, R4 and R5 represents a group Q; ! one of the remaining groups R1, R2, R3, R4 and R5 is hydrogen, deuterium, halogen, cyano, nitro, amino, hydroxy, C1-C6 alkyl, C2-C6 alkenyl, C2-C6 alkynyl, C3-C10 cycloalkyl, C5 -C10 cycloalkenyl, C1-C6 alkoxy, C3-C10 cycloalkoxy, (C1-C6 alkoxy) C1-C6 alkoxy, C5-C7 cycloalkenyloxy, aryl, heteroaryl, aryloxy, heteroaryloxy, (C2-C4 alkenyl) C1-C3 alkoxy, ( C2-C4 alkynyl) C1-C3 alkoxy, (aryl) C1-C3 alkoxy, (heteroaryl) C1-C3 alkoxy, (C3-C10 cycloalkyl) C1-C3 alkyl, (C3-C10 cycloalkyl) C1-C3 alkoxy, (C5 -C10 cycloalkenyl) C1-C3 alkyl, (C5-C10 cycloalkenyl) C1-C3 alkoxy, (C1-C4 alkoxy) C1-C3 alkyl, (C3-C7 cy cloalkoxy) C1-C3 alkyl, (C3-C7 cycloalkoxy) C2-C4 alkenyl, (C3-C7 cycloalkoxy) C2-C4 alkynyl, (C3-C7 cycloalkoxy) C1-C3 alkoxy, (C1-C4 alkylamino) C1-C3 alkyl , di- (C1-C3 alkylamino) C1-C3 alkyl, tri- (C1-C4 alkyl) silyl-C1-C6 alkyl, tri- (C1-C4 alkyl) silyl-C2-C6 alkenyl, tri- (C1-C4 alkyl) silyl-C2-C6 alkynyl, tri- (C1-C41. Композиция, содержащая соединение, имеющее структуру: ! ! или любой его стереоизомер или таутомер, или любое его фармацевтически приемлемое пролекарство, соль или сольват, где ! - каждый R1, R2, R3, R4 и R5 независимо представляет