@article{article109ff8bb, title = {Cyclic lactam 'ALFA'-melanotropin analogues of ac-nle4-cyclo [asp5,d-phe7, lys10] 'ALFA'-melanocyte-stimulating hormone- (4-10)-nh2 with bulky aromatic amino acids at position 7 show high antagonist potency and selectivity at specific melanocortin receptors}, author = {Hruby, V J and Lu, D and Sharma, S D and Castrucci, Ana Maria de Lauro and Kesterson, R A and Al-Obeidi, F A and Hadley, M E and Cone, R D}, year = {1995}, journal = {Journal of Medicinal Chemistry} }