Abstract
Saponins are secondary metabolites that have a plethora of biological activities. However, the absence of knowledge of their 3D structures is a major drawback for structural-based strategies in medicinal chemistry. To address this problem, the current work presents structural models of Stenocereus eruca saponins, named erucasaponin A and stellatoside B. These compounds were constructed on the basis of a combination of unrestrained molecular dynamics (MD) simulations and NOESY data, in both pyridine and water. The models obtained in this way offer a robust description of the saponin dynamics in solution and support the use of submicrosecond MD simulations in describing and predicting glycoconjugate conformations.
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