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