Antimetabolites produced by microorganisms. XVI. Synthesis of N5-hydroxy-2-methylarginine and N5-hydroxy-2-methylornithine.
作者:HUBERT MAEHR、MICHAEL LEACH
DOI:10.7164/antibiotics.31.165
日期:——
N5-Hydroxy-2-methylornithine and N5-hydroxy-2-methylarginine were synthesized. 2-Amino-5-hydroxy-2-methylpentanoic acid was prepared from 5-hydroxy-2-pentanone and converted to N-(tetrahydro-3-methyl-2-oxo-2H-pyran-3-yl) acetamide which was treated with hydrogen bromide affording 2-(acetylamino)-5-bromo-2-methylpentanoic acid. This acid was esterified with methanol and used to alkylate anti-benzaldoxime
合成了N5-羟基-2-甲基鸟氨酸和N5-羟基-2-甲基精氨酸。由5-羟基-2-戊酮制备2-氨基-5-羟基-2-甲基戊酸,并转化为N-(四氢-3-甲基-2-氧代-2H-吡喃-3-基)乙酰胺,对其进行处理。用溴化氢得到2-(乙酰氨基)-5-溴-2-甲基戊酸。该酸用甲醇酯化并用于烷基化抗-苯甲醛肟,得到2-(乙酰氨基)-2-甲基-5-[((苯基亚甲基)氨基]-戊酸甲酯N5-氧化物,其在水解时产生N5-羟基-2-甲基鸟氨酸,经氨解和短酸处理后,得到N2-乙酰基-N5-羟基-2-甲基鸟氨酸。后一种化合物的氨基甲酰化和水解提供了N5-羟基-2-甲基精氨酸。