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| (S)-reticuline ： ウィキペディア英語版 |
Reticuline
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Reticuline is a chemical compound found in a variety of plants including ''Lindera aggregata'', ''Annona squamosa'', and ''Ocotea fasciculata'' (also known as ''Ocotea duckei''). It is based on the benzylisoquinoline structure.
Reticuline is one of the alkaloids found in opium, and experiments in rodents suggest it possesses potent central nervous system depressing effects.〔 It is the precursor of morphine and many other alkaloids.
== Metabolism ==
3'-hydroxy-N-methyl-(S)-coclaurine 4'-O-methyltransferase uses ''S''-adenosyl methionine and 3'-hydroxy-''N''-methyl-(''S'')-coclaurine to produce ''S''-adenosylhomocysteine and (''S'')-reticuline.
Reticuline oxidase uses (''S'')-reticuline and O2 to produce (''S'')-scoulerine and H2O2.
Salutaridine synthase uses (''R'')-reticuline, NADPH, H+, and O2 to produce salutaridine, NADP+, and H2O. Salutaridine can then be transformed progressively to thebaine, oripavine, and morphine.
1,2-dehydroreticulinium reductase (NADPH) uses (''R'')-reticuline and NADP+ to produce 1,2-dehydroreticulinium, NADPH, and H+.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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