Methyl 2-((3-nitrophenyl)methylene)-3-oxobutanoate → 1,4-Dihydro-2,6-dimethyl-3-methoxycarbonyl-4-(3-nitrophenyl)-5-(11-phthalimido-undecyloxy)carbonyl-pyridine

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Prepared by a method analogous to that of Example 1(a) from 9.33 g (37.5 mmol) of 2-(3-nitrobenzylidene)-acetoacetic acid methyl ester and 15.00 g (37.5 mmol) of 3-amino-crotonic acid-(11-phthalimido-undecyl)ester. 23.18 g (98%) of yellow crystals, melting point 130°-132° C., obtained from methanol.

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