Lyophilization

If necessary, lyophilize the purified peptide to obtain a dry powder for storage.

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IR spectroscopy Elemental analysis Asymmetric synthesis Regioselectivity Flash chromatography Characterization Crystallization Yield NMR spectroscopy Distillation Enantioselective Cleavage Ligand Hydrogenation Nucleophile Heck reaction Steric hindrance Enantiomeric excess (ee) Carbene Recrystallization Mass spectrometry (MS) Cross-coupling Protecting groups Cyclopropanation Deprotection Filtration GC (gas chromatography) Precursor Radical reaction Hydrogen bonding Microwave irradiation TLC (thin-layer chromatography) HPLC (high-performance liquid chromatography) coordination complex Epoxidation Intramolecular X-ray crystallography Leaving group Dielectric constant Chelation Diastereomers Inhibitor Purification Metathesis Isomerization Ligand Design Asymmetric Induction Workup Chiral Resolution Oxidative Addition

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