Search for "3-(dimethylsulfonio)propanoate" in Full Text gives 2 result(s) in Beilstein Journal of Organic Chemistry.
Beilstein J. Org. Chem. 2021, 17, 569–580, doi:10.3762/bjoc.17.51
Beilstein J. Org. Chem. 2021, 17, 420–430, doi:10.3762/bjoc.17.38