Abstract
Ethyl cis - and trans -2-aminocyclohexanecarboxylate ( 4) were used as starting material to prepare ( r -4a, t -2,_ t -8a)-, ( r -4a, c -2, c -8a)- and ( r -4a, t -2, c -8a)-2-p-nitrophenylperhydroquinazol-in-4-one and their 3-methyl-substituted derivatives in stereospecific or stereoselectlve syntheses. The relative configurations of the quinazolones were assigned via DNOE measurements. Crystal structure determinations of cis - 7a and cis - 8a were also performed by X-ray diffraction.
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