T. Bhattacharyya et Uj. Nilsson, An efficient and convergent route towards water-soluble, chiral and amphiphilic macrocycles, TETRAHEDR L, 42(15), 2001, pp. 2873-2875
A practical procedure for the synthesis of water-soluble, chiral and amphip
hilic macrocyclic molecules is described. Acylation of p-xylylene diamine w
ith Fmoc-protected glycine and aspartic acid, followed by removal of the Fm
oc moiety afforded amino acid:p-xylene conjugates as free diamines. These d
iamines were converted to symmetrical and unsymmetrical macrocycles via ste
pwise urea formation using p-nitrophenyl chloroformate. (C) 2001 Elsevier S
cience Ltd. All rights reserved.