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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Eritadenine ： ウィキペディア英語版 Eritadenine Eritadenine is an isolate of Shiitake. Eritadenine is an inhibitor of S-adenosyl-L-homocysteine hydrolase (SAHH) and has hypocholesterolemic activity. ==Synthesis== The structure is a purine alkylated with an oxidized sugar fragment. Ring opening of the protected lactone (1), derived from erythrose with sodium phthalimide gives the acid 2; hydrazinolysis (cf Gabriel synthesis) then leads to the amino acid 3. Displacement of chlorine in pyrimidine 4 by the amine function on 3 serves to attach the future imidazole nitrogen and the sugar-derived sidechain (5). The nitro group is then reduced by catalytic hydrogenation, the resulting primary amine is the most basic and is selectively formylated with formic acid. These strongly acidic conditions serve to remove the acetonide protecting group as well (6). Treatment with NaOH then serves to close the imidazole ring, forming eritadenine (7) 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Eritadenine」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.