Reaction of Acetaldehyde with 5-Aminolevulinic Acid <i>via</i> Dihydropyrazine Derivative
作者:Toshinori Suzuki、Naoki Yasuhara、Takashi Ueda、Michiyo Inukai、Mitsunobu Mio
DOI:10.1248/cpb.c14-00694
日期:——
(ALA) was incubated with acetaldehyde at neutral pH, a product was generated. This product was identified as 3-ethylpyrazine-2,5-dipropanoic acid (ETPY). ETPY was stable at neutral pH. It has been reported that ALA dimerizes at neutral pH generating 3,6-dihydropyrazine-2,5-dipropanoic acid (DHPY), and subsequently resulting in pyrazine-2,5-dipropanoic acid (PY) by autoxidation. In the present reaction
当将5-氨基乙酰丙酸(ALA)溶液与乙醛在中性pH下孵育时,生成了产物。该产物被鉴定为3-乙基吡嗪-2,5-二丙酸(ETPY)。ETPY在中性pH下稳定。据报道,ALA在中性pH下二聚,生成3,6-二氢吡嗪-2,5-二丙酸(DHPY),随后通过自氧化反应生成吡嗪-2,5-二丙酸(PY)。在本反应中,由ALA产生的DHPY与乙醛反应,得到ETPY。乙醛注射前3分钟预先给予ALA抑制了乙醛对雄性小鼠的毒性。这些结果表明ALA可用作乙醛的清除剂。