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Kupchan SM, Komoda Y, Court WA, Thomas GJ, Smith RM, Karim A, Gilmore CJ, Haltiwanger RC, Bryan RF.Kupchan SM, et al.J Am Chem Soc. 1972 Feb 23;94(4):1354-6. doi: 10.1021/ja00759a054.J Am Chem Soc. 1972.PMID: 5062169No abstract available.