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Michael Addition, nitro-group-activated benzofurans, 5-phenylfuranone, (R)-5-((2R,3S)-2-nitro-2,3-dihydrobenzofuran-3-yl)-5-phenylfuran-2(5H)-one, 3-[[3,5-bis(trifluoromethyl)phenyl]amino]-4-[[(8α,9S)-6′-methoxycinchonan-9-yl]amino]-3-Cyclobutene-1,2-dione, Quinine Derivative

Michael, Michael Addition

Mannich reaction, substituted 2,4-dihydropyrazol-3-one, substituted 4-imino-2,4-dihydropyrazol-3-one, amino-bis-pyrazolone derivatives, 3-[[3,5-bis(trifluoromethyl)phenyl]amino]-4-[[(8α,9S)-6′-methoxycinchonan-9-yl]amino]-3-Cyclobutene-1,2-dione, Quinine Derivative

Mannich, Mannich

Amination, N-propynylacetamides, azodicarboxylates, gold-catalyst, 3-[[(8α,9S)-6′-methoxycinchonan-9-yl]amino]-4-(phenylamino)-3-cyclobutene-1,2-dione, Quinine Derivative

Amination, Cyclization, Cyclization, Further Cyclizations

Mannich reaction, benzo[e][1,2,3]oxathiazine 2,2-dioxide, acetophenone, (S)-2-(2,2-dioxido-3,4-dihydrobenzo[e][1,2,3]oxathiazin-4-yl)-1-phenylethan-1-one, (8α,9S)-6′-Methoxycinchonan-9-amine, Quinine Derivative

Mannich, Mannich

Michael Addition, S-butyl 3-oxobutanethioate, (E)-(2-nitrovinyl)benzene, S-butyl (2S,3R)-2-acetyl-4-nitro-3-phenylbutanethioate, 3-(((1S,2R)-2-hydroxy-2,3-dihydro-1H-inden-1-yl)amino)-4-(((S)-(6-methoxyquinolin-4-yl)((1S,2S,4S,5R)-5-vinylquinuclidin-2-yl)methyl)amino)cyclobut-3-ene-1,2-dione, Quinine Derivative

Michael, Michael Addition

Cycloaddition, 4-phenyl-2H-pyran-2,6(3H)-dione, trifluoromethylketones, trimethylsilyldiazomethane, substituted methyl 6-oxo-4-phenyl-2-(trifluoromethyl)-3,6-dihydro-2H-pyran-3-carboxylate, N-[(8α,9S)-6′-methoxy-2′-phenylcinchonan-9-yl]-N′-(triphenylmethyl)-urea, Quinine Derivative

Cyclization, Cycloaddition

Cycloaddition, substituted dihydrofuran-2,5-dione, aldehydes, trimethylsilyldiazomethane, 2,3-disubstituted methyl 5-oxotetrahydrofuran-3-carboxylate, 3-[[3,5-bis(trifluoromethyl)phenyl]amino]-4-[[(8α,9S)-6′-methoxy-2′-phenylcinchonan-9-yl]amino]-3-cyclobutene-1,2-dione, Quinine Derivative

Cyclization, Cycloaddition

Cycloaddition, cyclic anhydrides, ketones, (3S)-substituted (R)-1-oxoisochromane-4-carboxylic acid, 3-[[3,5-bis(trifluoromethyl)phenyl]amino]-4-[[(8α,9S)-6′-methoxy-2′-phenylcinchonan-9-yl]amino]-3-cyclobutene-1,2-dione, Quinine Derivative

Cyclization, Cycloaddition

Deoxygenation, secondary alcohols, sulfones, sulfinates, 3,4-Bis[[(8α,9S)-6′-methoxycinchonan-9-yl]amino]-3-cyclobutene-1,2-dione, Quinine Derivative

Deoxygenation, Further reactions

Peroxidation, α,β-unsaturated nitroalkenes, (1-hydroperoxy-1-methoxyethyl)benzene, 1-substituted 1-hydroperoxy-2-nitroethane, N-[(8α,9S)-6′-Methoxycinchonan-9-yl]-3,5-bis(trifluoromethyl)benzenesulfonamide, Quinine Derivative

Further reactions, Peroxidation

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