Syntheses of Pyrroloquinoline Quinone Derivatives: Model Compounds of a Novel Coenzyme PQQ (Methoxatin)
作者:Shinobu Itoh、Jin-ichiro Kato、Teruhisa Inoue、Yutaka Kitamura、Mitsuo Komatsu、Yoshiki Ohshiro
DOI:10.1055/s-1987-28172
日期:——
Pyrroloquinoline quinone derivatives were synthesized as model compounds of a novel coenzyme PQQ. The 2-mono- and 2,9-dicarboxylic acid derivatives 1b and 1d and the 1-methylated derivative If were synthesized relatively easily from the intermediates 5 and 4 of the PQQ-synthesis. The 2, 7-dicarboxylic acid derivative 1e was also synthesized via a combination of the Japp-Klingemann reaction and Fischer indolization.
我们合成了吡咯喹啉醌衍生物,作为新型辅酶 PQQ 的模型化合物。2-mono- 和 2,9-二羧酸衍生物 1b 和 1d 以及 1-甲基化衍生物 If 比较容易地从 PQQ 合成的中间产物 5 和 4 合成出来。2,7-二羧酸衍生物 1e 也是通过 Japp-Klingemann 反应和费歇尔吲哚化反应合成的。