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Steroids with a thiophene ring fused to the 2, 3 positions were synthesized. Condensation of 2-methoxymethylene-3-ketosteroids (Ia, Ib) with ethyl thioglycolate in the presence of sodium methoxide yielded the tetrahydrothiophene derivatives (Va, Vb), which were dehydrated to the corresponding androstano [2, 3-c] thiophene carboxylates (VIa, VIb) by treatment of acids. Hydrolysis, followed by decarboxylation of the carbethoxythiophenes gave the corresponding androstano [2, 3-c] thiophenes (Xa, Xb). Similarly androst-4-eno [2, 3-c] thiophenes and androstanc [16, 17-c] thiophenes were prepared.
収録刊行物
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- CHEMICAL & PHARMACEUTICAL BULLETIN
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CHEMICAL & PHARMACEUTICAL BULLETIN 16 (7), 1200-1209, 1968
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
- 1390001204172739968
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- NII論文ID
- 110003620634
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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
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可