Если у кого есть доступ к Collect. Czech. Chem. Commun, не получится ли скачать две статьи:
1. Jaromír Toman, Jiří Klicnar and Vladimír Macháček
Synthesis of 2-methyl-3-oxo-3,4-dihydroquinoxaline derivatives
Collect. Czech. Chem. Commun. 1978, 43, 2179-2189.
- DOI:
http://dx.doi.org/10.1135/cccc19782179
Derivatives of 3,4-dihydro-3-thioxo-2-quinoxalinylacetic acid
Collect. Czech. Chem. Commun. 1986, 51, 419-428.
- DOI:
http://dx.doi.org/10.1135/cccc19860419