64214-60-4Relevant articles and documents
Synthesis of (14C)tert-butyl acetylene
Cuevas-Licea, Karla G.,Yu, Nathan X.,Staskiewicz, Steven J.,Raab, Conrad E.
, p. 513 - 514 (2007)
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Total Synthesis and Antitrypanosomal Activity of Janadolide and Simplified Analogues
Chung, Jonathan H.,Corcilius, Leo,Geraghty, Kieran,Kaiser, Marcel,Payne, Richard J.,Tang, Arthur H.
supporting information, (2020/04/20)
Janadolide is a cyclic depsipeptide natural product isolated from the marine cyanobacterium Okeania sp. Herein, we describe the total synthesis of janadolide, along with eight simplified analogues, via an efficient solid-phase strategy. Crucial to the synthesis of the natural product was the construction of a key polyketide fragment via an enantioselective (-)-B-chlorodiisopinocampheylborane-mediated reduction and a B-alkyl Suzuki reaction. Janadolide and the simplified analogues exhibited antitrypanosomal activity against pathogenic Trypanosoma brucei rhodesiense and Trypanosoma cruzi parasites.
One-pot transition-metal-free synthesis of weinreb amides directly from carboxylic acids
Niu, Teng,Wang, Ke-Hu,Huang, Danfeng,Xu, Changming,Su, Yingpeng,Hu, Yulai,Fu, Ying
, p. 320 - 330 (2014/02/14)
Weinreb amides were prepared directly from carboxylic acids, N,O-dimethylhydroxylamine, and phosphorus trichloride in one pot at 60 °C in toluene in high yields, thus avoiding the separation of the moisture and air sensitive intermediate P[NMe(OMe)]3 in advance. Sterically hindered carboxylic acids also give the corresponding Weinreb amides in excellent yields. Various functional groups are tolerated on the carboxylic acid. The method, which is a simple process and gives high yields, is suitable for large-scale production. Georg Thieme Verlag KG Stuttgart · New York.