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The structure of clavicipitic acid, an azepinoindole derivative from Claviceps fusiformis
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1977
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Medicinal ChemistryClaviceps FusiformisBioorganic ChemistryClavicipitic AcidBiochemistryDerivative (Chemistry)Azepinoindole DerivativeNatural SciencesMass SpectralOrganic ChemistryStereoselective SynthesisChemical BiologyPharmacologyChemical DerivativeSynthetic ChemistryAmphoteric Indole DerivativeNatural Product Synthesis
Clavicipitic acid, an amphoteric indole derivative from Claviceps fusiformis, is identified by mass spectral and 1H n.m.r. studies as 3,4,5,6-tetrahydro-6-(2-methylprop-1-enyl)-1H-azepino[5.4,3-cd]indole-4-carboxylic acid (4) and shown to exist in two diastereoisomeric forms.