for the following products
Fmoc-L-Leucine | Fmoc-Leu-OH | N-(9-Fluorenylmethoxycarbonyl)-L-leucine | N-alpha-(9-Fluorenylmethyloxycarbonyl)-L-leucine | N-alpha-9-fluorenylmethoxycarbonyl-L-leucine | N-[(9H-Fluoren-9-ylmethoxy)carbonyl]-L-leucine | NPC 15199 and Fmoc-L-Leu-OH