Synthesis and biological activity of furanyl anti-juvenile hormonal compounds
摘要:
AbstractTwenty‐one synthetic compounds, containing one or more furan rings, were demonstrated to possess anti‐juvenile hormone (AJH) activity as evidenced by their induction of premature metamorphosis in the milkweed bug, Oncopeltus fasciatus (Dallas) by contact, topical application or fumigation. The ED50 of the four most active analogs required to induce precocious metamorphosis from 3rd‐instar nymphs by residue contact in a Petri dish compared favorably with that of precocene II (6,7‐dimethoxy‐2,2‐dimethyl 2H‐chromene) a naturally occurring phytochemical AJH. Precocious metamorphosis was fully reversible by co‐treatment with juvenile hormone (JH III) or JH analogs, demonstrating that the observed AJH activity resulted from an induced deficiency of juvenile hormone.
Synthesis and biological activity of furanyl anti-juvenile hormonal compounds
摘要:
AbstractTwenty‐one synthetic compounds, containing one or more furan rings, were demonstrated to possess anti‐juvenile hormone (AJH) activity as evidenced by their induction of premature metamorphosis in the milkweed bug, Oncopeltus fasciatus (Dallas) by contact, topical application or fumigation. The ED50 of the four most active analogs required to induce precocious metamorphosis from 3rd‐instar nymphs by residue contact in a Petri dish compared favorably with that of precocene II (6,7‐dimethoxy‐2,2‐dimethyl 2H‐chromene) a naturally occurring phytochemical AJH. Precocious metamorphosis was fully reversible by co‐treatment with juvenile hormone (JH III) or JH analogs, demonstrating that the observed AJH activity resulted from an induced deficiency of juvenile hormone.
A furan resin composition for production of molds has a urea content of 1 to 10 wt-% and a pH value (25° C.) of 7 to 10.
US8124719B2
申请人:——
公开号:US8124719B2
公开(公告)日:2012-02-28
Synthesis and biological activity of furanyl anti-juvenile hormonal compounds
作者:William S. Bowers、Gopalan C. Unnithan、Jun-Ichi Fukushima、Jun Toda、Takeyoshi Sugiyama
DOI:10.1002/ps.2780430102
日期:1995.1
AbstractTwenty‐one synthetic compounds, containing one or more furan rings, were demonstrated to possess anti‐juvenile hormone (AJH) activity as evidenced by their induction of premature metamorphosis in the milkweed bug, Oncopeltus fasciatus (Dallas) by contact, topical application or fumigation. The ED50 of the four most active analogs required to induce precocious metamorphosis from 3rd‐instar nymphs by residue contact in a Petri dish compared favorably with that of precocene II (6,7‐dimethoxy‐2,2‐dimethyl 2H‐chromene) a naturally occurring phytochemical AJH. Precocious metamorphosis was fully reversible by co‐treatment with juvenile hormone (JH III) or JH analogs, demonstrating that the observed AJH activity resulted from an induced deficiency of juvenile hormone.