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The action of acetic anhydride on N-methyltryptophans
Authors:A. N. Kost  T. V. Koronelli  R. S. Sagitullin
Affiliation:(1) Khar'kov Chemical-Pharmaceutical Scientific Research Institute, USSR
Abstract:Summary A new furocoumarin of composition C21H22O7 has been isolated from the fruit ofLibanotis transcaucasica Schischk. It has been established that libanotin is a derivative of 8-isopropyloxy-8,9-dihydroangelicin. The side groups of libanotin — acetic and 2-methyl-cis-crotonic acids — are attached to the main part of the molecule by ester bonds.Khimiya Prirodnykh Soedinenii, Vol. 1, No. 3, pp. 215–220, 1965
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