Synthetic studies towards Leinamycin. A concise synthesis of the spiro-fused 1,3-Dioxo-1,2-dithiolane moiety.
作者:Gerald Pattenden、Anthony J. Shuker
DOI:10.1016/0040-4039(91)80239-3
日期:1991.11
A synthesis of the 1,3-dioxo-1,2-dithiolabne residue (2) found in the antitumour antibiotic substance leinamycin (1) is described which features: (i) elaboration of the thiolactone (5), followed by (ii) ring opening to the thioacid (9) using H2S-Et3N and (iii) ring closure of (9) to (4) in the presence of aq. FeCl3, and finally (iv) oxidation (Scheme 1). 30071991
描述了在抗肿瘤抗生素物质莱那霉素(1)中发现的1,3-二氧-1,2-二硫杂戊酮残基(2)的合成,其特征是:(i)硫代内酯(5)的合成,然后(ii)使用H 2 S-Et 3 N对硫代酸(9)开环和(iii )在水溶液的存在下(9)至(4)的闭环。FeCl 3,最后(iv)氧化(方案1)。30071991