136051-63-3Relevant academic research and scientific papers
METHOD FOR PREPARATION OF INTERMEDIATES USEFUL FOR PREPARATION OF THAPSIGARGIN AND NORTRILOBOLIDE
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Page/Page column 23-24, (2018/09/25)
The present invention relates to the preparation of Thapsigargin (1) and Nortrilobolide (2). The invention further relates to intermediates and preparation of said intermediates which are useful for the preparation of (1) and (2).
A Concise, Efficient and Scalable Total Synthesis of Thapsigargin and Nortrilobolide from (R)-(?)-Carvone
Chen, Dezhi,Evans, P. Andrew
, p. 6046 - 6049 (2017/05/09)
A concise, efficient and scalable synthesis of thapsigargin and nortrilobolide from commercially available (R)-(?)-carvone was developed. Our synthetic strategy is inspired by nature’s carbon-carbon bond formation sequence, which facilitates the construction of a highly functionalized sesquiterpene lactone skeleton in five steps via an enantioselective ketone alkylation and a diastereoselective pinacol cyclization. We envision that this strategy will permit the construction of other members of the family, structural analogs and provide a practical synthetic route to these important bioactive agents. In addition, we anticipate that the prodrug Mipsagargin, which is currently in late-stage clinical trials for the treatment of cancer, will also be accessible via this strategy. Hence, the limited availability from natural sources, coupled with an estimated demand of one metric ton per annum for the prodrug, provides a compelling mandate to develop practical total syntheses of these agents.
Total synthesis of five thapsigargins: Guaianolide natural products exhibiting sub-nanomolar SERCA inhibition
Andrews, Stephen P.,Ball, Matthew,Wierschem, Frank,Cleator, Ed,Oliver, Steven,Hoegenauer, Klemens,Simic, Oliver,Antonello, Alessandra,Huenger, Udo,Smith, Martin D.,Ley, Steven V.
, p. 5688 - 5712 (2008/02/13)
Herein we describe the total synthesis of five guaianolide natural products: thapsigargin. thapsivillosin C, thapsivillosin F, trilobolide and nortrilobolide. Prodrug derivatives of thapsigargin have shown selective in vivo cytotoxicity against prostate tumours and the need for further investigation of this phenomenon highlights the importance of these total syntheses. The first absolute stereochemical assignment of thapsivillosin C is also delineated.
A Route to the Thapsigargins from (S)-Carvone Providing a Substrate-Controlled Total Synthesis of Trilobolide, Nortrilobolide, and Thapsivillosin F
Oliver, Steven F.,Hoegenauer, Klemens,Simic, Oliver,Antonello, Alessandra,Smith, Martin D.,Ley, Steven V.
, p. 5996 - 6000 (2007/10/03)
An entirely substrate-controlled total synthesis of three members of the thapsigargin family (e.g. trilobolide) is achieved starting from (S)-carvone. The synthesis is linear in nature but is achieved in high yield (> 90% per step). The route permits late
