文献一覧: 菅沢勉 (著者)

2 0 0 0 OA Aconitum-Alkaloide. III. : Uber die Konstitution des Ignavins. (1).

著者: 落合英二岡本敏彦菅沢勉谷英郎坂井進一郎洪山海遠藤英也
出版者: The Pharmaceutical Society of Japan
雑誌: Pharmaceutical Bulletin (ISSN:03699471)
巻号頁・発行日: vol.1, no.1, pp.60-65, 1953-03-20 (Released:2008-02-26)
被引用文献数: 2 5

2020-04-11 12:24:03
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1 0 0 0 ゾンゴリンの構造研究

著者: 菅沢勉
出版者: 東京大学
巻号頁・発行日: 1961

博士論文

2017-10-03 04:48:56
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https://ci.nii.ac.jp/naid/500000321886

1 0 0 0 OA Experiments on the Synthesis of dl-Camptothecin. III. Total Synthesis of dl-Camptothecin

著者: 菅沢勉豊田達郎笹倉和幸
出版者: The Pharmaceutical Society of Japan
雑誌: Chemical and Pharmaceutical Bulletin (ISSN:00092363)
巻号頁・発行日: vol.22, no.4, pp.771-781, 1974-04-25 (Released:2008-03-31)
被引用文献数: 6 13

dl-Camptothecin (XXX) and two epimeric N-formyl-1, 2, 6, 7-tetrahydrocamptothecins (XXIIIa, b) have been synthesized from 3-oxo-1H-pyrrolo [3, 4-b] quinoline IIIa by using following two key reactions. 1) An intramolecular aldol condensation of the imido-ester (VIIIb→IXb). 2) Vilsmeier reaction on a 4-methoxy-2-pyridone ring (XVIb→XVII) followed by nucleophilic attack of a malonate carbanion onto the formyl-pyridone ring (XVII→XVIII).

2017-10-03 04:46:14
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1 0 0 0 OA Experiments on the Synthesis of dl-Camptothecin. II. Synthesis of a D-E Ring Analog of Camptothecin and a Total Synthesis of Ricinine

著者: 菅沢勉笹倉和幸豊田達郎
出版者: The Pharmaceutical Society of Japan
雑誌: Chemical and Pharmaceutical Bulletin (ISSN:00092363)
巻号頁・発行日: vol.22, no.4, pp.763-770, 1974-04-25 (Released:2008-03-31)
被引用文献数: 7 12

A D-E ring analog (XX) of camptothecin (I) was synthesized from 4-methoxy-1-methyl-2 (1H)-pyridone by using Vilsmeier reaction followed by nucleophilic direct introduction of di-tert-butyl malonate onto the pyridone ring, ethylation and hydroxylation.

2017-10-03 04:45:55
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1 0 0 0 OA Experiments on the Synthesis of dl-Camptothecin. I. Attempted Synthesis of Potential Ring A-B-C Components

著者: 菅沢勉笹倉和幸日高哲郎豊田達郎
出版者: The Pharmaceutical Society of Japan
雑誌: Chemical and Pharmaceutical Bulletin (ISSN:00092363)
巻号頁・発行日: vol.22, no.4, pp.757-762, 1974-04-25 (Released:2008-03-31)
被引用文献数: 1 2

Attempted synthesis of 3-substituted (alkoxycarbonyl, hydroxymethyl or cyano)-2, 3-dihydro-2-benzyl (acyl or alkoxycarbonyl)-1H-pyrrolo [3, 4-b] quinolines (II), (III), and (VI) as potential ring A-B-C components for a total synthesis of dl-camptothecin (I) is described.

2017-10-03 04:45:23
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1 0 0 0 OA Synthesis of 1-and 3-Oxo-dihydro-2H-pyrrolo [3, 4-b] quinoline and Their Reaction with Phosphorus Pentasulfide

著者: 菅沢勉豊田達郎笹倉和幸日高哲郎
出版者: The Pharmaceutical Society of Japan
雑誌: Chemical and Pharmaceutical Bulletin (ISSN:00092363)
巻号頁・発行日: vol.19, no.9, pp.1971-1974, 1971-09-25 (Released:2008-03-31)
被引用文献数: 5 12

2017-10-03 04:27:34
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