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Volumn 42, Issue 22, 2003, Pages 2521-2525

A total synthesis of epothilones using solid-supported reagents and scavengers

Author keywords

Aldol reaction; Antitumor agents; Natural products; Polyketides; Polymers

Indexed keywords

ENZYME IMMOBILIZATION; PURIFICATION; SYNTHESIS (CHEMICAL);

EID: 0038001604     PISSN: 14337851     EISSN: None     Source Type: Journal    
DOI: 10.1002/anie.200351413     Document Type: Article
Times cited : (75)

References (81)
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    • 1H NMR spectroscopy (Mosher esters).
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    • All yields quoted are based on mass recovery, assuming quantitative conversion into products.
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    • It was necessary to perform a filtration through silica gel to remove baseline impurities from ketone fragment 1 (3) prior to the aldol coupling.
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    • The same reaction also proceeded well in diethyl ether, although the selectivity appeared to be more capricious, varying from 10:1 to as high as > 30:1.
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    • It proved to be necessary to perform an aqueous workup to remove the excess TBAF from the reaction.
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    • Although no attempt was made to recycle or regenerate the immobilized reagents, owing to the scale of this particular synthesis, recycling remains an option for larger-scale processes.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.