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We found these compounds were readily prepared from a convenient short course via acylation of 2g and 2f, and its results will be published in another paper
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Recently, Prasad reported that chiral N-acylated 2g and 2f were prepared from the ring opening of oxazolines with aniline followed by cyclization with phosgene and used for highly diastereoselective benzylations and methylations; see: Konigsberger, K.; Prasad, K.; Repic, O.; Blacklock, T. J. Tetrahedron: Asymmetry 1997, 8, 2347. We found these compounds were readily prepared from a convenient short course via acylation of 2g and 2f, and its results will be published in another paper.
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