Search for "hexahydropyrrolo[2,1-a]isoquinoline" in Full Text gives 2 result(s) in Beilstein Journal of Organic Chemistry.
Beilstein J. Org. Chem. 2020, 16, 1225–1233, doi:10.3762/bjoc.16.106
Beilstein J. Org. Chem. 2014, 10, 1233–1238, doi:10.3762/bjoc.10.122