An Efficient Asymmetric Construction of Novel Spiro-Fused 2-Oxindoles/ α-Methy-paraconic Ester
Guo Yanjun, Meng Chenhong, Liu Xueli, Xu Danqian, Xia Aibao
Chin. J. Org. Chem. . 2017, (10): 2776 -2782 .  DOI: 10.6023/cjoc201703013