書誌事項
- タイトル別名
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- MALDI-MS Analysis of Antitumor Antibiotics with Thiol Containing Matrix
- チオール ガンユウ マトリックス オ モチイタ コウシュヨウ コウセイ ブッシツ ノ MALDI-MS ブンセキ
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抄録
<p>The diynene natural products are effective drugs for cancer or leukemia owing to their strong DNA cleavage activity. Bioreduction triggers Masamune–Bergman cyclization of their diynene portion producing a 1,4-dehydrobenzene diradical species, and it abstracts two hydrogens from deoxyribose. MALDI mass spectrum of Esperamicin-A1, one of the first isolated diynene antibiotics, with thiol containing matrix (2,5-diamino-1,4-benzenedithiol) gave peaks of the cleavage of the trisulfide with thiols (m/z 1248) and cyclized analyte (m/z 1250, Esperamicin-Z).However, three matrices including 2,3-diaminonaphthol gave no peaks of Esperamicin-Z, while it gave peaks of m/z 1248. The results suggested that thiol group of matrix has influence on cyclization mechanism of the diynene portion.</p>
収録刊行物
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- 質量分析
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質量分析 69 (1), 4-7, 2021-02-01
一般社団法人 日本質量分析学会
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詳細情報 詳細情報について
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- CRID
- 1390287142242655616
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- NII論文ID
- 130007986233
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- NII書誌ID
- AN0010555X
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- ISSN
- 18804225
- 18843271
- 13408097
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- NDL書誌ID
- 031293013
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可