Search for "chiral 3-amino-2-oxindoles" in Full Text gives 2 result(s) in Beilstein Journal of Organic Chemistry.
Beilstein J. Org. Chem. 2018, 14, 1349–1369, doi:10.3762/bjoc.14.114
Beilstein J. Org. Chem. 2012, 8, 1241–1245, doi:10.3762/bjoc.8.139