中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
2-甲氧基-9-甲基嘌呤-6-胺 | 6-Amino-2-methoxy-9-methylpurine | 61494-91-5 | C7H9N5O | 179.181 |
2-甲氧基-7H-嘌呤 | 2-methoxypurine | 37432-20-5 | C6H6N4O | 150.14 |
2-氯-9-甲基-9H-嘌呤 | 2-Chlor-9-methyl-purin | 2346-73-8 | C6H5ClN4 | 168.585 |
2-甲氧基-9H-嘌呤-6-胺 | 2-methoxy-7(9)H-purin-6-ylamine | 28128-30-5 | C6H7N5O | 165.154 |
A 1H n.m.r. study of some methoxy-, methylthio- and chloro-N-methyl-purines and imidazo[4,5-c]-pyridines revealed that the signal due to the N-methyl group when present in the six-membered ring occurred at lower field than when present in the imidazole ring. The methylation of 2-,6-and 8-methoxypurines with diazomethane, and metatheses of chloro-N-methylpurines each to methoxy-N-methylpurines are described.