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1990 Fiscal Year Final Research Report Summary

Biologically Active Compounds from a Philippine Medicinal Plant, Genus Premna

Research Project

Project/Area Number 01571154
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field Chemical pharmacy
Research InstitutionHiroshima University

Principal Investigator

OTSUKA Hideaki  Hiroshima Univ. Sch, Med. Assoc. Prof., 医学部, 助教授 (00107385)

Co-Investigator(Kenkyū-buntansha) YAMASAKI Kazuo  Hiroshima Univ. Sch. Med. Prof., 医学部, 教授 (00034017)
Project Period (FY) 1989 – 1990
KeywordsPremna odorata / Premna japonica / Verbenaceae / Iridoid / Rhamnopyranosylcatalpol / Monoacylrhamnopyranosylcatalpol / Diacylrhamnopyranosylcatalpol / Premna corymbosa
Research Abstract

In the course of investigation of the Phillipine medicinal plant, Premna odorata Blanco, two monoacyl and four diacyl 6-O-alpha-L-rhamnopyranosylcatalpols were isolated. In the Philippines, this plant is used for loosening phlegm, as a cough remedy, to promote urination and vaginalirrigation, and for cardiac troubles. A related plant, P. japonica Miq. is also used in China as an antipyretic, a hemostatic and an antidote for bites by poisonous snakes. From leaves of P. japonica, a total of nine new acylated deivatives of 6-0-alpha-L-rhamnopyranosylcatalpol was isolated. Their structures were determined by ^<13>C and ^1H NMR, and other physico-chemical meathods. Another related plant, P. corymbosa was collected in Okinawa. This plant morphologically resembles more with P. odorata than P. japonica. Chemical investigation of this plant is on the way, but irigoid glucoside conjugate of acteoside was isolated along with acteoside and acylted 6-O-alpha-L-rhamnopyuranosylcatalpol. Research on the structure determination of the conjugated is in progress.

  • Research Products

    (10 results)

All Other

All Publications (10 results)

  • [Publications] Hideaki Otsuka: "Premnosides AーD:diacyl 6ー0ーαーLーrhamnopyranosylcatalpols" Phytochemistry. 28. 3063-3067 (1989)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Hideaki Otsuka: "6ー0ーαーLー(2^"ー0ーand 3^"ーisoferuloyl)rhamnopyranosylcatalpols from Premna japonica" Phytochemistry. 28. 3069-3071 (1989)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Hideaki Otsuka: "Iridoid diglycoside monoacyl esters from the leaves of Premna japonica" J.Nat.Prod.53. (1990)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Hideaki Otsuka: "Isolation and characterization of new diacyl 6ー0ーαーLーrhamnopyranosylcatalpols from the leaves of Premna japonica Mig." Chem.Pharm.Bull.38. 426-429 (1990)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Hideaki Otsuka: "Isolation and structure elucidation of monoacyl and diacyl 6ー0ーαーLーrhamnopyranosylcatalpols from leaves of Premna japonica" J.Nat.Prod.54. 000-000 (1991)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Hideaki Otsuka et al.: "Premnosides A-D : diacyl 6-O-alpha-L-rhamnopyranosylcatalpols from Premna odorata" Phytochemistry. 28(02). 513-515 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Hideaki Otsuka et al.: "6-O-alpha-L-(2"-O- and 3"-O-isoferuloyl) rhamnopyranosylcatalpols from Premna japonica" Phytochemistry. 28(11). 3069-3071 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Hideaki Otsuka et al.: "Iridoid diglycoside monoacyl esters from the leaves of Premna japonica" J. Nat. Prod.53(01). 107-111 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Hideaki Otsuka et al.: "Isolation and characterization of new diacyl 6-alpha-L-rhamnopyranosylcatalpols from the leaves of Premna japonica" Chem. Pharm. Bull.38(02). 426-429 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Hideaki Otsuka et al.: "Isolation and structure elucidation of mono- and diacyl 6-O-alpha-L-rhamnopyranosylcatlpols from leaves of Premna japonica" J. Nat. Prod.54(02). (1991)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1993-08-12  

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