Lact (IMAGE) Kazan Federal University Caption Synthesis of tetrapropanolamide derivatives of thiacalixarene, i: M2CO3 (M = Na, K, Cs for cone, partial cone, 1,3-alternate stereoisomers, correspondingly), BrCH2C(O)OEt, acetone, reflux; ii H2NCH2CH2CH2OH, methanol/toluene, reflux Credit Kazan Federal University Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.