title: New ways to derivatize at position 6 of 7,7-dimethyl-7,8-dihydropterin.
abstract: Reported are the synthesis of two intermediates for derivatization at position 6 of 7,7-dimethyl-7,8-dihydropterin: 6-carboxylic acid ethyl ester-7,7-dimethyl-7,8-dihydropterin, which is a novel compound, and 6-aldehyde-7,7-dimethyl-7,8-dihydropterin, which is synthesized by a new method with a yield of 90%.
authors: Biomolecular Structure Section, Macromolecular Crystallography Laboratory, National Cancer Institute, 1050 Boyles Street, Frederick, MD 21702, USA.
authors: Genbin
authors: G
authors: Shi
authors: Xinhua
authors: X
authors: Ji