Summary
1. Neoabienol, isoagatholal, 18-nordehydroabietan-4α-ol, 19-nordehydroabiet-4(18)-ene, and methyl 15-hydroxydehydroabietan-18-oate have been isolated from the oleoresin ofPinus koraiensis Sieb. et Zucc.
2. The trisubstituted double bond of neoabienol has the cis configuration. On thermolysis, cis-abienol rearranges stereospecifically into neoabienol.
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Additional information
Novosibirsk Institute of Organic Chemistry, Siberian Branch, Academy of Sciences of the USSR. Translated from Khimiya Prirodnykh Soedinenii, No. 5, pp. 595–597, September–October, 1971.
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Raldugin, V.A., Pentegova, V.A. Diterpenoids of the oleoresin of Pinus koraiensis the stereochemistry of neoabienol. Chem Nat Compd 7, 574–576 (1971). https://doi.org/10.1007/BF00568410
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DOI: https://doi.org/10.1007/BF00568410