Constituents of the Vietnamese medicinal plant Orthosiphon stamineus.

@article{Tezuka2000ConstituentsOT,
  title={Constituents of the Vietnamese medicinal plant Orthosiphon stamineus.},
  author={Y. Tezuka and P. Stampoulis and A. Banskota and S. Awale and K. Trần and I. Saiki and S. Kadota},
  journal={Chemical & pharmaceutical bulletin},
  year={2000},
  volume={48 11},
  pages={
          1711-9
        }
}
  • Y. Tezuka, P. Stampoulis, +4 authors S. Kadota
  • Published 2000
  • Chemistry, Medicine
  • Chemical & pharmaceutical bulletin
  • From the MeOH extract of the aerial part of Vietnamese Orthosiphon stamineus, five new isopimarane-type diterpenes [orthosiphols F-J (1-5)] and two new diterpenes [staminols A (6) and B (7)] with a novel carbon-framework, to which we proposed the name "staminane", and three new highly-oxygenated staminane-type diterpenes [staminolactones A (8) and B (9) and norstaminol A (10)1 were isolated. Moreover, staminolactone A (8) is 8,14-secostaminane-type and staminolactone B (9) is 13,14… CONTINUE READING
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    References

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    Colorless amorphous solid , [ a ] D 25 2 24 . 3 ° ( c 5 0 . 51 , CHCl 3 ) . IR n max ( CHCl 3 ) cm 2 1 : 3550 , 3430 , 3300 , 1725 , 1600 , 1450 , 1370 , 1200 — 1270 , 1090 , 1070 , 1040
      Colorless amorphous solid , [ a ] D 25 2 27 . 8 ° ( c 5 0 . 69 , CHCl 3 ) . IR n max ( CHCl 3 ) cm 2 1 : 3550 , 3430 , 3300 , 1725 , 1600 , 1450 , 1200 — 1270 , 1090 , 1070 , 1040
        Colorless amorphous solid , [ a ] D 25 2 38 . 0 ° ( c 5 0 . 41 , CHCl 3 )
        • 1995
        Colorless amorphous solid , [ a ] D 25 2 58 . 0 ° ( c 5 0 . 63 , CHCl 3 ) . IR n max ( CHCl 3 ) cm 2 Colorless amorphous solid , [ a ] D 25 2 108 . 9 ° ( c 5 0 . 55 , CHCl 3 )
          Colorless amorphous solid , [ a ] D 25 2 58 . 5 ° ( c 5 0 . 24 , CHCl 3 ) . IR n max ( CHCl 3 ) cm 2
            Colorless amorphous solid , [ a ] D 25 2 63 . 3 ° ( c 5 0 . 47 , CHCl 3 )
              Colorless amorphous solid , [ a ] D 25 2 82 . 8 ° ( c 5 2 . 10 , CHCl 3 )
                Colorless amorphous solid , [ a ] D 25 2 97 . 2 ° ( c 5 0 . 067 , CHCl 3 ) . IR n max ( CHCl 3 ) cm 2 1 : 3570 , 1800 , 1730 , 1600 , 1455 , 1370 , 1270 , 1200 — 1240
                  Colorless amorphous solid , [ a ] D 25 2 98 . 9 ° ( c 5 0 . 12 , CHCl 3 ) . IR n max ( CHCl 3 ) cm 2 1 : 3500 , 1770 , 1730 , 1600 , 1455 , 1390 , 1370 , 1270 , 1200 — 1240