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The structure of pillaromycinone (II) was elucidated. The ultraviolet (UV) spectrum of PMN tetraacetate (VI) was similar to that of 1, 2, 3, 4-tetrahydro-1-oxophenanthrene. On oxidative degradation pillaromycinone dimethyl ether (IX) gave 3-methoxy-1, 2, 4, 5-benzenetetracarboxylic acid (X) and 3-methoxyphthalic acid (XI). Zinc dust distillation of II gave anthracene and naphthacene. The UV spectrum of II resembles to that of anhydrodemethyltetracycline. From the chemical and spectrometric data the structure of β-substance (IV) was suggested to be 1, 2, 3, 4, 4a, 5, 12, 12a-octahydro-12-oxo-4, 10, 11, 12a-tetrahydroxynaphthacene. The nuclear magnetic resonance (NMR) and the spin decouplings of isopropylidene PMN (XVI) and PMN (II) gave the structure (3(S), 4(R), 4a(R), 12a(R)) 2-acetyl-3, 4, 4a, 5, 12, 12a-hexahydro-12-oxo-3, 4, 10, 11, 12a-pentahydroxynaphthacene to PMN (II).
収録刊行物
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- CHEMICAL & PHARMACEUTICAL BULLETIN
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CHEMICAL & PHARMACEUTICAL BULLETIN 18 (9), 1706-1712, 1970
公益社団法人 日本薬学会
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詳細情報 詳細情報について
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- CRID
- 1390282679148876800
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- NII論文ID
- 110003632498
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- NII書誌ID
- AA00602100
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- ISSN
- 13475223
- 00092363
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- 本文言語コード
- en
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- データソース種別
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- JaLC
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- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可