Facile method for the preparation of 7-methyl-8-oxoguanosines as an immunomodulator |
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| Authors: | Y Kitade N Saito A Kozaki K Takahashi C Yatome Y Takeda H Sajiki K Hirota |
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| Affiliation: | Department of Biomolecular Science, Faculty of Engineering, Gifu University, Japan. kitade@apchem.gifu-u.ac.jp |
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| Abstract: | Reaction of 9-(2,3,5-tri-O-acetyl-beta-D-ribofuranosyl)-7-methylguaninium iodide (2a) with hydrogen peroxide in acetic acid gave the corresponding 7-methyl-8-oxoguanosine derivative (3a) in good yield. Deprotection of 3a easily gave 7-methyl-8-oxoguanosine (1), which is well-known as an immunomodulator. Substitution of acetyl group at the N2-position of guanine ring accelerated the oxidation reaction of the 7-methylguaninium iodide. |
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