1383715-57-8Relevant articles and documents
A key intermediate of ticagrelor and preparation method thereof
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, (2022/02/24)
The invention discloses a key intermediate for preparing ticagrelor, namely a compound represented by a formula (A), and further discloses a preparation method of the key intermediate, wherein the key intermediate is prepared from compounds represented by a formula (I) and a formula (II) and used as raw materials in a polar aprotic solvent in the presence of alkali and a catalyst. The invention also discloses a process of preparing a compound represented by formula (D) by removing vinyl from the compound represented by formula (A) in the presence of acid to prepare a compound represented by formula (B), then removing an amino protecting group to prepare a compound represented by formula (C), and finally salifying with L-tartaric acid. The method disclosed by the invention has the beneficial effects of no dangerous reagent application, high atom utilization rate, high yield, high purity, low cost, suitability for industrial safe amplified production and the like.