114817-96-8Relevant articles and documents
Chiron Approaches to the Antitumor Natural Product Fuzanin D
Gao, Yangguang,Cao, Zhou,Su, Chengzhong,Chen, Zefeng,He, Xianran,Ding, Fei,Li, Hang,Zhang, Yongmin
, p. 4471 - 4476 (2016)
Fuzanin D, a pyridine-containing natural product, which exhibits cytotoxic activity against DLD-1 cells, is synthesized in a concise manner using l-arabinose or ethyl l-lactate as chiral pool substrates in nine steps (14.4% overall yield) and six steps (30.8% overall yield), respectively. The key steps involve Wittig olefination and olefin cross--metathesis.
Reductive ring opening of 6-deoxy-6-iodopyranosides and 5-deoxy-5-iodofuranosides by manganese. A convenient procedure for the preparation of chiral 5-hexenals and 4-pentenals
Tanaka,Yamano,Mitsunobu
, p. 1620 - 1622 (2001)
Reaction of fully protected 6-iodopyranosides and 5-iodofuranosides with Mn in the presence of trimethylsilyl chloride and PbCl2 (Takai-conditions) afforded the corresponding 5-hexenals and 4-pentenals in good to moderate yields.
Preparation of anti -vicinal amino alcohols: Asymmetric synthesis of d - Erythro -sphinganine, (+)-spisulosine, and d - Ribo -phytosphingosine
Calder, Ewen D. D.,Zaed, Ahmed M.,Sutherland, Andrew
, p. 7223 - 7233 (2013)
Two variations of the Overman rearrangement have been developed for the highly selective synthesis of anti-vicinal amino alcohol natural products. A MOM ether-directed palladium(II)-catalyzed rearrangement of an allylic trichloroacetimidate was used as the key step for the preparation of the protein kinase C inhibitor d-erythro-sphinganine and the antitumor agent (+)-spisulosine, whereas the Overman rearrangement of chiral allylic trichloroacetimidates generated by the asymmetric reduction of an α,β-unsaturated methyl ketone allowed rapid access both to d-ribo-phytosphingosine and l-arabino-phytosphingosine.
Total synthesis of (+)-cladospolide A
Prasad, Kavirayani R.,Revu, Omkar
, p. 2243 - 2248 (2012)
A stereoselective total synthesis of (+)-cladospolide A from d-ribose is described. Key features of the synthesis include olefin cross metathesis and Yamaguchi lactonization. Georg Thieme Verlag Stuttgart New York.
D-erythro-sphingosine synthesis method
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, (2017/08/31)
The invention relates to a D-erythro-sphingosine synthesis method, comprising the steps of dissolving a compound 6 into dry tetrahydrofuran, adding lithium aluminum hydride under protection of nitrogen, after complete reaction of a raw material, adding a potassium sodium tartrate solution and finishing; extracting through ethyl acetate, concentrating and performing column chromatography; separating to obtain D-erythro-sphingosine. Compared with a traditional method, the synthesis method provided by the invention has the advantages that the use of a large amount of strong base phenyl lithium in a Wittig reaction process is avoided, meanwhile, the yield is increased; an azidation reaction adopts a two-step method of iodination and then azidation, and low temperature reaction in the existing technical scheme is not needed, so that the operation is more convenient and simple.