γ-Hydroxy-β-lysine is a new basic amino acid isolated from the hydrolyzates of antitubercular peptides, tuberactinomycin A and N. In order to confirm the structure and establish the stereochemistry of the amino acid, two diastereoisomers of γ-hydroxy-Dl-β-lysine were synthesized by Arndt-Eistert synthesis via β-hiydroxyornithine. Synthetic erythro and threo isomers were found to be identical spectroscopically and chromatographically with the corresponding forms obtained from the antibiotics respectively.
Chemical Studies on Tuberactinomycin. XIV. Novel Synthesis of DL-Capreomycidine
Cyclic guanidino amino acid, capreomycidine, is a component of antituberculous peptides, capreomycin and tuberactinomycin N and O. Its epimer was also found in protease inhibitors, chymostatin and elastatinal. A new synthetic approach to DL-capreomycidine via β-hydroxyornithine was studied for the purpose of total synthesis of capreomycidine and epicapreomycidine of natural forms or its hydroxy derivative
环状胍基氨基酸,卷曲霉素,是抗结核肽、卷曲霉素和结核菌素 N 和 O 的成分。它的差向异构体也存在于蛋白酶抑制剂、凝乳素和弹性蛋白中。为了全合成天然形式的卷曲霉素和表卷曲霉素或其羟基衍生物结核菌素,研究了一种通过β-羟基鸟氨酸合成DL-卷曲霉素的新方法。