| l-alpha-glutamine, n(sup 2)-l-alpha-glutamyl-n-(2-(5-hydroxy-1h-indol-3-yl)ethy |
| alpha-5-hydroxytryptamide of gamma-(alpha-glutamoyl)glutamic acid |
| n(sup 2)-l-alpha-glutamyl-n-(2-(5-hydroxy-1h-indol-3-yl)ethyl)-l-alpha-glutam |
| n(sup2)-l-alpha-glutamyl-n-(2-(5-hydroxy-1h-indol-3-yl)ethyl)-l-alpha-glutamin |
