SYNTHESIS AND MOLECULAR STRUCTURE OF BIS(ARENO)PIPERIDINOAZA-14(17)-CROWNS-4(5) Article Levov A.N., Le An’ Tuan, Komarova A.I., Strokina V.M., Soldatenkov A.T., Khrustalev V.N. Russian Journal of Organic Chemistry. Vol. 44. 2008. P. 456-461
