@article{1c598000859f41c29d0b420c1bc7dc86,
title = "A Naturally Occurring Pyrimidodiazepine in Drosophila: Chemical and Spectral Properties and Relationship to Drosopterin",
abstract = "The structure of an intermediate, in drosopterin biosynthesis, as 6-acetylpyrimidodiazepine has been confirmed by high-resolution mass spectra, 13C NMR, chemical ionization mass spectra, and chemical properties. A trivial name of 6-acetylhomopterin is suggested and should replace the term “quench spot” used heretofore. The structure of drosopterin includes, in part, a pyrimidodiazepine, a compound that consists of a fused six- and seven-membered heterocyclic ring system. Earlier studies demonstrated that 6-acetylhomopterin strongly stimulated the enzymatic synthesis of drosopterin and related eye pigments by preparations from Drosophila. The occurrence in nature is quite limited for diazepines; drosopterin and homopterin are the first examples in eukaryotes.",
author = "Jacobson, {K. Bruce} and Dale Dorsett and W. Pfleiderer and McCloskey, {James A.} and Sethi, {Satinder K.} and Buchanan, {Michelle V.} and Rubin, {Ira B.}",
year = "1982",
doi = "10.1021/bi00265a048",
language = "English",
volume = "21",
pages = "5700--5706",
journal = "Biochemistry",
issn = "0006-2960",
publisher = "American Chemical Society",
number = "22",
}