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Yao Y, Fan W, Li W, Ma X, Zhu L, Xie X, Zhang Z. Synthesis of (S)-7-amino-5-azaspiro[2.4]heptane via highly enantioselective hydrogenation of protected ethyl 1-(2-aminoaceto)cyclopropanecarboxylates. J Org Chem. 2011 Apr 15;76(8):2807–13. doi: 10.1021/jo2002165. PMID: 21413753. |