Synthesis and Stereochemistry of Hypusine, a New Amino Acid in Bovine Brain.
作者:Tetsuo Shiba、Hitoshi Akiyama、Isao Umeda、Satoshi Okada、Tateaki Wakamiya
DOI:10.1246/bcsj.55.899
日期:1982.3
Hypusine, a new basic amino acid occurring in the homogenate of bovine brain tissue, was synthesized to determine the absolute structure. Nα-Benzyloxycarbonyl-l-lysine benzyl ester was coupled with (S)- or (R)-4-benzyloxycarbonylamino-1-bromo-2-butanol derived from l- or d-malic acid, respectively. The products were deprotected by catalytic hydrogenation. One of the synthetic compounds, i.e., (2S,9R)-2,11-diamino-9-hydroxy-7-azaundecanoic acid, was completely identical with natural hypusine in all respects.
羟脯氨酸是一种新发现的基本氨基酸,存在于牛脑组织的匀浆中,为了确定其绝对结构,进行了合成。Nα-苄氧基碳基-L-赖氨酸苄基酯与(S)-或(R)-4-苄氧基碳酰氨基-1-溴-2-丁醇(分别源自L-或D-苹果酸)偶联。合成产物通过催化氢化去保护。其中一种合成化合物,即(2S,9R)-2,11-二氨基-9-羟基-7-氮杂十一酸,在各方面与天然羟脯氨酸完全相同。