Condensation of 3-hydroxy-5-aryl-1.2-dihydro-3H-1.4-benzodiazepin-2-ones with diphenylchlorophosphine was found to produce 3- or 5-diphenylphosphine oxides with high analgesic activity; ED50 values were (0.08 ± 0.02) – (0.97 ± 0.27) mg/kg.
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*For preliminary communication see: Yu. G. Gololobov, I. Yu. Krasnova, S. V. Barabanov, V. N. Khrustalev, S. A. Andronati, and V. I. Pavlovsky, Tetrahedron Let., 55, 4879 (2014); DOI:10.1016/j.tetlet.2014.07.010.
Translated from Khimiko-Farmatsevticheskii Zhurnal, Vol. 50, No. 4, pp. 22 – 26, April, 2016.
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Pavlovskii, V.I., Gololobov, Y.G., Andronati, S.A. et al. Synthesis, Structure, and Analgesic Properties of Phosphorylated Dihydro-1,4-Benzodiazepin-2-Ones*. Pharm Chem J 50, 229–233 (2016). https://doi.org/10.1007/s11094-016-1428-8
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DOI: https://doi.org/10.1007/s11094-016-1428-8