| n-(2-thienylcarbonyl)-dl-norleucin (3-(5-nitro-2-furanyl)-2-propenylidene)h |
| n(sup 1)-(2'-thenoylnor(+-)leucyl)-n(sup 2)-(5''-amino-2''-furylacrylidene)hy |
| n-(2-thienylcarbonyl)-dl-norleucine (3-(5-nitro-2-furanyl)-2-propenylidene)hy |
| n-(2-thienylcarbonyl)-dl-norleucin(3-(5-nitro-2-furanyl)-2-propenylidene)hydrazide |
