TERRECYCLIC ACID A, A NEW ANTIBIOTIC FROM ASPERGILLUS TERREUS

III. ¹³C NMR SPECTRUM OF TERRECYCLIC ACID A

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Assignment of the fifteen carbons of terrecyclic acid A, C₁₅H₂₀O₃, a new sesquiterpene antibiotic, in the ¹³C NMR spectrum was performed by ¹³C-{¹H} selective proton decoupling experiments, comparison with spectra of its derivatives and chemical shifts.