Exploring 3,4-Trimethylene-α-PVP. To explore a different substance…

3,4-Trimethylene-α-PVP
1-(2,3-Dihydro-1H-inden-5-yl)-2-(pyrrolidin-1-yl)pentan-1-one
 2990  C18H25NO  271.397
 InChI=1S/C18H25NO/c1-2-6-17(19-11-3-4-12-19)18(20)16-10-9-14-7-5-8-15(14)13-16/h9-10,13,17H,2-8,11-12H2,1H3
 NBZPCEWLKPSIIL-UHFFFAOYSA-N This stereoisomer Any stereoisomer
 CCCC(C(=O)c1ccc2c(c1)CCC2)N1CCCC1