The so called 'fragment approach' was applied in the search for new leads as selective hNK(2) antagonists. A first round of structural space exploration through the use of bond rigidity as scaffold to support the fragments, afforded 27a as 200 nM hNK(2) ligand. Further refinement gave MEN 14933 as a 16 nM hNK(2) ligand, selective versus hNK(1), of a novel class. Conformational analysis was used to study results and plan future work. (C) 2004 Elsevier Ltd. All rights reserved.
LALEZARI, IRAJ;LALEZARI, PARVIZ, J. MED. CHEM., 32,(1989) N0, C. 2352-2357