Amphiphilic porphinatoirons having steroid groups and their oxygen-adduct formation in an aqueous medium.
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概要
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Amphiphilic heme derivatives having four steroid groups (steroid-heme), 5,10,15,20-<I>tetrakis</I>[α,α,α,α-<I>o</I>-[2,2-dimethyl-8-(3α-hydroxycholan-24-oyloxy)octanamido]phenyl]porphinatoiron (<B>1b</B>) and 5,10,15,20-<I>tetrakis</I>[α,α,α,α-<I>o</I>-(3-acetoxycholan-24-oylamino)phenyl]porphinatoiron (<B>2b</B>), were synthesized as a model of an oxygen carrier. They were efficiently embedded in the bilayer of a phospholipid liposome based on their high compatibility with the lipid. The oxygen-binding ability of <B>1b</B> was compared with those of hemoglobin (Hb) and myoglobin (Mb). The dioxygen adduct of <B>1b</B> was also characterized by Mössbauer and infrared spectroscopy.
著者
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Nishide Hiroyuki
Department Of Applied Chemistry Waseda University
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Tsuchida Eishun
Department Of Applied Chemistry Waseda University
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Inoue Hidenari
Department Of Applied Chemistry Faculty Of Science And Technology Keio University
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Komatsu Teruyuki
Department Of Applied Chemistry Faculty Of Science And Engineering Chuo University
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Nakata Taisaku
Department of Polymer Chemistry, Waseda University
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Babe Takeshi
Department of Polymer Chemistry, Waseda University
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