A New Quadruple Hydrogen-Bonding Module with a DDAA Array: Formation of a Stable Homodimer without Competition from Undesired Hydrogen-Bonded Dimers
摘要:
A new DDAA hydrogen-bonding module (Ulmp-2), based on a ureidoimidazo[1,2-a]pyrimidine structure, forms a highly stable homodimer (K-dlm > 1.1 x 10(5) M-1 in CDCl3) without competition from undesired hydrogen-bonded dimers.