Synthesis, Properties, and Redox Ability of Optically Active 3-Carba- moyl-1,6-dimethylpyrimido[4,5-c]-pyridazine-5,7(1H,6H)-dione and Related Pyrimido-annulated Pyridine Analogues
作者:Makoto Nitta、Shin-ichi Naya、Kohtaro Shibayama
DOI:10.3987/com-04-10063
日期:——
active 3-carbamoyl-1,6-dimethylpyrimido[4,5-c]pyridazine-5,7(1H,6H)-dione (13a) and related pyrimido-annulated pyridine analogues (13b,c) were prepared via the corresponding 3-ethoxycarbonyl-1,6-dimethylpyrimido[4,5-c]pydazine-5,7(1H,6H)-dione (11a) and the related compounds (11b,c). The properties of lla-c, 13a-c, and the related 1,3,6-trimethylpyrimido[4,5-c]pyridazine-5,7(1H,6H)-dione (18a) as well
光学活性的 3-carbamoyl-1,6-dimethylpyrimido[4,5-c]pyridazine-5,7(1H,6H)-dione (13a) 和相关的嘧啶环化吡啶类似物 (13b,c) 是通过相应的3-乙氧羰基-1,6-二甲基嘧啶并[4,5-c]哒嗪-5,7(1H,6H)-二酮 (11a) 和相关化合物 (11b,c)。lla-c、13a-c 和相关的 1,3,6-三甲基嘧啶并[4,5-c]哒嗪-5,7(1H,6H)-二酮 (18a) 以及 7-苯基-的性质和 3,7,8-trimethyl-pyrido[2,3-d]pyrimidine-2,4(3H,8H)-dione (18b,c) 通过 UV-VIS 光谱和氧化还原进行了研究潜力。虽然哒嗪衍生物(13a)没有被还原,但吡啶衍生物(11b,c)、(13b)和(18b)被Na 2 S 2 O 4 还原得到二氢化合物(20b