1970
DOI: 10.1039/c29700001020
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Revision of the structures of (+)-tubocurarine chloride and (+)-chondrocurine

Abstract: The hitherto accepted structures for ( + )-tubocurarine chloride and (+ )-chondrocurine have been found to be incorrect; the former is a mono-not a diquaternary salt, the latter being the related tertiary base.

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Cited by 92 publications
(29 citation statements)
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“…The origin of the different orientations was ascribed to differences in the x-ray structures of the two antagonists, likely to be present in solution (26), that allow rearrangement of the positively charged ligands in the aromatic-rich binding site. Distinct docking orientations have also been observed for different steroids bound to sex hormone binding globulin, as determined by x-ray crystallography and confirmed by mutagenesis together with measurements of binding affinity (28).…”
Section: Discussionmentioning
confidence: 99%
“…The origin of the different orientations was ascribed to differences in the x-ray structures of the two antagonists, likely to be present in solution (26), that allow rearrangement of the positively charged ligands in the aromatic-rich binding site. Distinct docking orientations have also been observed for different steroids bound to sex hormone binding globulin, as determined by x-ray crystallography and confirmed by mutagenesis together with measurements of binding affinity (28).…”
Section: Discussionmentioning
confidence: 99%
“…Many analogs of d-tubocurarine have been analyzed in search of a better muscle relaxant, but such studies utilized in vivo assays of potency that cannot be readily converted to binding affinity and do not take into account pharmacokinetics and other mechanisms such as open channel blockade. Further complications of d-tubocurarine structurefunction analysis was the correction of the structure by Everett et al (1970) from a bis-quaternary ammonium to a monoquaternary, mono-tertiary ammonium as well as the appreciation by Soine (1978a, 1978b) that some previous synthetic procedures did not yield the expected derivatives (e.g. Marshall et al (1967)).…”
mentioning
confidence: 99%
“…La revisión de la estructura definitiva de la d-tubocurarina hecha por Everett, cambió la línea de investigación 29 . A partir de entonces se aceptó que el bloqueo neuromuscular podía ocurrir con moléculas con un solo nitrógeno cuaternario, y que la distancia entre ellos tenía menos importancia.…”
Section: La Historia Modernaunclassified