01112naa a2200265 a 450000100080000000500110000800800410001902400380006010000220009824500870012026000090020752003260021665300410054270000190058370000170060270000190061970000170063870000200065570000210067570000170069670000190071370000290073270000260076177300590078718728912012-11-30       2010    bl uuuu     u00u1 u    #d7 a10.1016/j.tetlet.2010.02.0252DOI1 aJOSEPH-NATHAN, P.  aStructure reassignment and absolute configuration of 9-epi-presilphiperfolan-1-ol.  c2010  aReevaluation of 13C NMR data in combination with X-ray diffraction and VCD studies led us to reassign the structure of (−)-epi-presilphiperfolan-1-ol (1), isolated from Anemia tomentosa var. anthriscifolia, to (−)-9-epi-presilphiperfolan-1-ol (2) and to establish its absolute configuration as 1S,4S,7R,8R,9S.  aAnemia tomentosa var. anthriscifolia1 aLEITÃO, S. G.1 aPINTO, S. C.1 aLEITÃO, G. G.1 aBIZZO, H. R.1 aCOSTA, F. L. P.1 aAMORIM, M. B. de1 aMARTINEZ, N.1 aDELLACASSA, E.1 aHERNÁNDEZ-BARRAGÁN, A.1 aPÉREZ-HERNÁNDEZ, N.  tTetrahedron Lettersgv. 51, n. 15, p. 1963-1965, 2010.