| 摘要 |
Diastereoselective and enantioselective synthetic routes for the preparation of compounds of formula (I): or derivatives thereof, wherein: R is C1-6alkyl, C3-7cycloalkyl, C1-6alkoxy, hydroxy, halo, C1-6alkenyl, C1-6alkynyl, amino, C1-6alkylamino, di(C1-6alkyl)amino, hydroxyC1-6alkyl, C1-6alkoxyC1-6alkyl, arylC1-6alkoxy, heteroarylC1-6alkoxy, aminoC1-6alkyl, (C1-6alkyl)aminoC1-6alkyl, di(C1-6alkyl)aminoC1-6alkyl, arylC1-6alkylamino, heteroarylC1-6alkylamino; R<1 >is hydrogen or R; R<2 >is hydroxy, C1-6alkoxy, amino, C1-6alkylamino, di(C1-6alkyl)amino; R<3 >and R<4 >are each independently selected from the list consisting of perhaloC1-6alkyl, hydrogen, halo, C1-6alkyl, C1-6alkoxy, hydroxy, amino, C1-6alkylamino, di(C1-6alkyl)amino, hydroxyC1-6alkyl, C1-6alkoxyC1-6alkyl, aminoC1-6alkyl, (C1-6alkyl)aminoC1-6alkyl, di(C1-6alkyl)aminoC1-6alkyl, aryl, and COX wherein X may be hydroxy, C1-6alkoxy, C1-6alkyl, amino, C1-6alkylamino, or di(C1-6alkyl)amino; and wherein any alkyl group or the alkyl moiety of any group containing such a moiety may be substituted one or more times by halo.
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