The present paper covers the synthesis and the characterization of ligand 2-decyl-3,6,9-tris(carboxymethyl)-3,6,9-triazaundecan-1,11-dioic acid,H_5L,and its Gd(
A new guaianolide was isolated from the roots of Scorzonera austriaca. The structure was elucidated on the basis of spectral methods including 2D NMR.
A new g