Pteridines. Part C. Structure and nonenzymatic synthesis of aurodrosopterin
作者:Jeongbin Yim、Sujeong Kim、Gunter Walcher、Wolfgang Pfleiderer
DOI:10.1002/hlca.19930760516
日期:1993.8.11
The nonenzymatic synthesis of aurodrosopterin (5) from 6-acetyl-2-amino-3, 7, 8, 9-tetrahydro-4H-pyrimido-[4,5-b][1,4]diazepin-4-one (3) and 7,8-dihydrolumazine (4) at pH 3 (HCl) was performed. The identity of the synthesized compound with the natural eye pigment isolated from drosophila heads was confirmed by thin-layer chromatography on cellulose and by comparisons of the 1H-NMR and UV/VIS spectra
aurodrosopterin(的非酶合成5)由6-乙酰基-2-氨基-3-,7,8,9四氢-4- ħ -pyrimido- [4,5- b ] [1,4]二氮杂-4-酮(3)和在pH 3(HCl)下进行7,8-二氢鲁嗪(4)。通过在纤维素上的薄层色谱法以及通过1 H-NMR和UV / VIS光谱的比较,证实了合成的化合物与从果蝇头部分离出的天然眼色素的身份。由3的非酶促合成新蝶呤类红色素也进行了2,4-二氨基-7,8-二氢蝶啶,但不能确定其身份。这种色素被称为氨基drosopterin,在489 nm处有一个吸收峰,与新drosopterin的吸收峰非常接近。