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The title compound 5,11,17,23-tetra-tert-butyl-N,N,N',N'-tetraethyl-26,28-dihydroxypentacyclo [,7.19,13.115,19]octacosa-1(25),3,5,7(26),9, 11,13(27),15,17,19(28),21,23-dodecaene-25,27-diylbis(oxythioacetamide), C56H78N2O4S2, was synthesized from the reaction of the known 1,3-bis(diethylamide)-substituted calix[4]arene with 2,4-bis(4-methoxyphenyl)-1,3-dithia-2,4-diphosphetane-2,4-disulfide (Lawesson's reagent). The calixarene is found to have a pinched cone conformation, with no solvent molecule in the cavity.

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CCDC reference: 128575

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