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ChemicalBook CAS DataBase List Everolimus
159351-69-6

Everolimus synthesis

3synthesis methods
Everolimus, also known as RAD001, is a derivative of the natural macrocyclic lactone sirolimus with immunosuppressant and anti-angiogenic properties. In cells, everolimus binds to the immunophilin FK Binding Protein-12 (FKBP-12) to generate an immunosuppressive complex that binds to and inhibits the activation of the mammalian Target of Rapamycin (mTOR), a key regulatory kinase. Inhibition of mTOR activation results in the inhibition of T lymphocyte activation and proliferation associated with antigen and cytokine (IL-2, IL-4, and IL-15) stimulation and the inhibition of antibody production.
Synthetic Routes
  • ROUTE 1
  • 202112077518771453.jpg

    Polymer compositions containing a macrocyclic triene compound; Shulze, John E.; Betts, Ronald E.; Savage, Douglas R.; Assignee Sun Bow Co., Ltd., Bermuda; Sun Biomedical Ltd. 2003; Patent Information; Nov 06, 2003; WO 2003090684 A2

  • ROUTE 2
  • 202112079343318556.jpg

    Wang, Feng. Everolimus intermediate and preparation method thereof. Assignee Shanghai Institute of Pharmaceutical Industry, Peop. Rep. China; China State Institute of Pharmaceutical Industry. CN 109776570. (2019).

  • ROUTE 3
  • 202112079361245279.jpg

    Wang, Bing; Zhao, Jonathon Zhong. Preparation of rapamycin analogs and their use in the treatment of cancer and immune diseases. Assignee Hangzhou Zylox Pharma Co., Ltd., Peop. Rep. China. WO 2014082286. (2014).

  • ROUTE 4
  • 202112073424760811.jpg

    Zabudkin, Oleksandr; Schickaneder, Christian; Matviienko, Iaroslav; Sypchenko, Volodymyr. Method for the synthesis of rapamycin derivatives. Assignee Synbias Pharma AG, Switz. EP 3109250. (2016).

  • ROUTE 5
  • 202112073028713226.jpg

    Lu, Shiyong; Zhang, Xiaotian; Chen, Haohan; Ye, Weidong. Preparation of sirolimus 40-ether derivative. Assignee Zhejiang Medicine Co., Ltd. Xinchang Pharmaceutical Factory, Peop. Rep. China. CN 105237549. (2016).

  • ROUTE 6
  • 202112078885876109.jpg

    Seo, Jeong U.; Ham, Yun Beom; Kang, Heung Mo; Lee, Gwang Mu; Kim, In Gyu; Kim, Jeong Jin; Park, Ji Su. Preparation of everolimus and synthetic intermediate thereof. Assignee CKD Bio Corp., S. Korea. KR 1529963 (2015).

202112077518771453.jpg

Polymer compositions containing a macrocyclic triene compound; Shulze, John E.; Betts, Ronald E.; Savage, Douglas R.; Assignee Sun Bow Co., Ltd., Bermuda; Sun Biomedical Ltd. 2003; Patent Information; Nov 06, 2003; WO 2003090684 A2

159351-68-5 Synthesis
40-O-[2-(t-butyldimethylsilyl)oxy]ethyl rapamycin

159351-68-5
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Yield:159351-69-6 98.1%

Reaction Conditions:

with hydrogenchloride in lithium hydroxide monohydrate;ethyl acetate at 0 - 5;Temperature;

Steps:

19-22 Example 19

At room temperature, compound V (9.64 g, 9 mmol) was added to 50 mL of ethyl acetate, stirred and dissolved, cooled to 05° C., and hydrochloric acid solution (6.75 mL, 6.75 mmol, 1.0 mol/L) was added dropwise, and stirred until the reaction was completed, 50 mL of saturated NaHCO solution was added to the reaction solution, and the solution was separated. The aqueous phase was extracted with 25 mL of ethyl acetate. The organic phases were combined. The organic phases were washed with saturated brine, dried over anhydrous sodium sulfate, filtered, and concentrated to dryness to obtain everolimus. The crude product, the crude everolimus was dissolved in 20 mL of ethyl acetate, then 20 mL of anhydrous ether was added, stirred for 1 h, and then concentrated under reduced pressure until a solid was precipitated. The obtained solid was added to 20 mL of anhydrous ether, stirred for 30 min, and concentrated to dryness under reduced pressure. Everolimus was obtained, the yield was 98.1%, and the HPLC purity was 99.83%.

References:

CN114539288,2022,A Location in patent:Paragraph 0017; 0096-0106

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