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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 11, pp. 1568–1569, November, 1989.
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Liepin'sh, É.É., Skrastin'sh, I.P., Kastron, V.V. et al. Sulfonation of 2,6-dimethyl-3,5-dimethoxycarbonyl-4-2-difluoromethoxyphenyl)-1,4-dihydropyridine (phoridone). Chem Heterocycl Compd 25, 1316–1317 (1989). https://doi.org/10.1007/BF00481537
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DOI: https://doi.org/10.1007/BF00481537