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- W2323347112 endingPage "1072" @default.
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- W2323347112 abstract "Process Research and Development activities leading to a new and efficient route to bendamustine hydrochloride, 1, the active ingredient in Treanda, a treatment for blood cancers, are disclosed. Two key features of this new process include a one-pot hydrogenation/dehydration sequence to construct the benzimidazole moiety and a novel reductive alkylation using chloroacetic acid and borane to install the bischloroethyl side chain. The number of synthetic steps has been significantly reduced to five from the eight in the current commercial process. The overall yield has been improved from 12% to 45%. Additionally, this new route eliminates chloroform, ethylene oxide, and sodium sulfide. Scale-up of the new route has been successfully demonstrated to prepare kilogram quantities of bendamustine hydrochloride." @default.
- W2323347112 created "2016-06-24" @default.
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- W2323347112 date "2011-08-26" @default.
- W2323347112 modified "2023-10-05" @default.
- W2323347112 title "Discovery of a Novel, Efficient, and Scalable Route to Bendamustine Hydrochloride: The API in Treanda" @default.
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- W2323347112 doi "https://doi.org/10.1021/op200176f" @default.
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