Browsing by Subject "VCD"
Now showing items 1-4 of 4
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(2010)The absolute configuration of semisynthetic (-)-3α,6β- acetoxytropane 1, prepared from (-)-6β-hydroxyhyoscyamine 2, has been determined using vibrational circular dichroism (VCD) spectroscopy. The vibrational spectra (IR ...
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(Wiley InterScience, 2010)The absolute configuration of semisynthetic (2)-3a,6b-acetoxytropane 1, prepared from (2)-6b-hydroxyhyoscyamine 2, has been determined using vibrational circular dichroism (VCD) spectroscopy. The vibrational spectra (IR ...
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(WILEY-BLACKWELL, 2009-11-06)The configuration of a chiral center in semisynthetic (2)-(2R,5R,5aR,8f,9aS)- 2,8-dibromo-2,5,9,9a-tetrahydro-5-hydroxy-5,8,10,10-tetramethyl-6H-2,5a-methano-1-benzoxepin- 7(8H)-one (3 or 4), prepared in two steps from ...
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(2009)The absolute configuration of the pentacyclic ichthyotoxin stypotriol, a constituent of Stypopodium zonale, was deduced to be 3S,5R,8R,9R,10S,13S,14S-(-) -1 by vibrational circular dichroism spectroscopy of the derived ...