1. Symbols and abbreviations are in accordance with the recommendations of the IUPAC-IUB Commission of Biochemical Nomenclature [J. Biol. Chem. 1972, 247, 977]. Other abbreviations include the following: α-MSH, α-melanotropin or α-melanocyte stimulating hormone; Nle, norleucine; 2,4-Cl2-Z, 2,4-dichlorobenzyloxycarbonyl; DCC, dicyclohexylcarbodiimide; 2,6-Cl2-Bzl, 2,6-dichlorobenzyl; pMBHA resin, p-methylbenzhydrylamine resin; HOBT, N-hydroxybenzotriazole; For, formyl; Tos, tosyl; Nα-Boc, Nα-tert-butyloxycarbonyl; 1-BuOH, 1-butanol; TFA, trifluoroacetic acid; CMC, carboxymethylcellulose; DIEA, diisopropylethylamine; DCM, dichloromethane; DAMP, 4-N, N-dimethylaminopyridine; all optically active amino acids are of the l variety unless otherwise stated.
2. The opiomelanotropinergic neuronal and endocrine systems
3. αMelanocyte Stimulating Hormone: Chemical Nature and Mechanism of Action
4. The Tyrosine Hydroxylase Activity of Mammalian Tyrosinase
5. γ-l-Glutaminyl-3,4-benzoquinone