furan-2-yl(morpholin-4-yl)methanethione

1,1'-bipiperidine

4,4'-bimorpholine

4-[[4-(morpholin-4-ylmethyl)-2,5-diphenyl-1,2,4,5-tetrazinan-1-yl]methyl]morpholine

4-(4,5-dihydro-1,3-thiazol-2-yl)morpholine