well-known endogenous modulators of the nitric oxide (NO) generating system. To understand the (patho)physiological role and impact of N δ-methylation of l-arginine and l-ornithine an efficient synthesis of the pure enantiomers was needed. A synthetic approach that furnished both the desired amino acids in 8–10 steps from commercially available N-Boc-l-ornithine in good overall yields (20–21%) and with
摘要 Ñ ω
甲基化的升-arginines如非对称二
甲基-升-精
氨酸(A
DMA)和单
甲基升精
氨酸(N
MMA)是
一氧化氮的公知的内源性调控(NO)产生系统。为了理解的(病理)的生理作用和影响Ñ δ -methylation的升精
氨酸和升
鸟氨酸需要的纯对映体的有效合成。据报道,有一种合成方法可以从市售N- Boc- 1-
鸟氨酸中以8–10步提供所需的
氨基酸,且总收率好(20–21%),光学纯度高(ee> 99%)。 Ñ ω
甲基化的升-arginines如非对称二
甲基-升-精
氨酸(A
DMA)和单
甲基升精
氨酸(N
MMA)是
一氧化氮的公知的内源性调控(NO)产生系统。为了理解的(病理)的生理作用和影响Ñ δ -methylation的升精
氨酸和升
鸟氨酸需要的纯对映体的有效合成。据报道,有一种合成方法可以从市售N- Boc- 1-
鸟氨酸中以8–10步提供所需的
氨基酸,且总收率好(20–21%),光学纯度高(ee>