Two calix[4]arene cyclopeptides were synthesized by reacting 1,3-di(chloroc
arbonyl-methoxy)-p-tert-butylcalix[4]arene with cystine dimethyl eater dihy
drochloride. One of them was found to be a good receptor for phosphomonoest
er. (C) 1999 Elsevier Science Ltd. All rights reserved.