hydrogenchloride in methanol; water 1) r.t., 1 h, 2) reflux, 3 h;
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Kumar, B. Vijaya; Rao, A. Bhaskar; Reddy, V. Malla
Indian Journal of Chemistry, Section B: Organic Chemistry Including Medicinal Chemistry, 1985 , vol. 24, p. 889 - 892
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