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Transformations of intermediates 4, prepared from methyl 2‐(2,2‐disubstituted‐ethenyl)amino‐3‐dimethylaminopropenoates 2 and sterically hindered heteroarylamines 3, into methyl 1‐heteroaryl‐1H‐imidazole‐4‐carboxylates 7 are described.
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Selič et al. (1998) studied this question.
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