191410-00-1Relevant academic research and scientific papers
Total synthesis and absolute configuration of malyngamide W
Qi, Xian-Liang,Zhang, Jun-Tao,Feng, Jian-Peng,Cao, Xiao-Ping
experimental part, p. 3817 - 3824 (2011/06/21)
A concise enantioselective synthesis of malyngamide W (1) and its 2′-epimer was described. The strategy was based on three key steps: (1) ozonolysis of compound 11 which was derived from (R)-(-)-carvone 8, followed by copper-iron-catalyzed rearrangement to give the key cyclohex-2-enone intermediate 5, (2) Nozaki-Hiyama-Kishi coupling reaction between aldehyde 4 and iodide 14 to afford alcohol 3, and (3) asymmetric (R)-CBS reduction of the ketone functionality in compound 21 to establish the C-2′ chiral center in the target compound 1. The absolute configuration of malyngamide W (1) was thus confirmed via the synthesis of 1 and 2′-epi-1.
Bryostatin: A novel asymmetric synthesis of the C27-C34 fragment starting from (R)-carvone as chiral template
De Brabander,Kulkarni,Garcia-Lopez,Vandewalle
, p. 1721 - 1724 (2007/10/03)
(R)-Carvone is a suitable chiral template for the synthesis of differently protected (4S,6R,7R)-trihydroxy-1-octyne derivatives, the C27-C34 fragment of bryostatins. Also other potentially interesting chiral building blocks are described.
(R)-Carvone as chiral template for the synthesis of some polyols
Brabander, J. De,Kulkarni, B. A.,Garcia-Lopez, R.,Vandewalle, M.
, p. 665 - 670 (2007/10/03)
Some (4S,6R,7R) 4,6,7-trihydroxyheptyl derived building blocks have been obtained from (R)-carvone as the chiral template.A key-step is the Baeyer-Villiger oxidation of a suitable intermediate.
