Compounds with growth hormone releasing properties
申请人:Novo Nordisk A/S
公开号:US06083908A1
公开(公告)日:2000-07-04
Compounds of Formula I ##STR1## and their use for treating medical disorders resulting from a deficiency in growth hormone are disclosed, wherein R.sup.1, R.sup.2, R.sup.3a, R.sup.4a, R.sup.5a, G, J and D are as defined in the specification.
A general route to azadepsipeptides, a new class of pseudopeptides, has been established. The methodology was applied to the synthesis of a bis-aza analogue of the antiparasitic cyclooctadepsipeptide PF1022A. Comparison of the X-ray crystal structures of natural PF1022A (8) and the chimeric aza analogue 9 revealed that the introduction of nitrogen in the backbone of PF1022A results in almost complete conservation of the 3D structure with only minor deviations at the new nitrogen positions.
Jensen,K.A. et al., Acta Chemica Scandinavica (1947), 1968, vol. 22, p. 1 - 50
作者:Jensen,K.A. et al.
DOI:——
日期:——
Stereodynamics of Nitrogen Chiral Centers in aza-β<sup>3</sup>
-Cyclodipeptides
作者:Philippe Le Grel、Aikaterini Asprogenidi、Philippe Huez、Barbara Le Grel、Arnaud Salaün、Thierry Roisnel、Michel Potel、Elham Rasti、Alexandre Hocquet
DOI:10.1002/chir.22160
日期:2013.6
synthesis, conformational analysis, and stereodynamic study of aza‐β3‐cyclodipeptides. This pseudopeptidic ring shows E/Z hydrazide bond isomerism, eight‐membered ringconformation, and chirotopic nitrogen atoms, all of which are elements that are prone to modulate the ring shape. The (E,E) twist boat conformation observed in the solid state by X‐ray diffraction is also the ground conformation in solution