| 摘要 |
PROBLEM TO BE SOLVED: To provide an intermediate for producing (R)-1-cyclopropyl-8- difluoromethoxy-7-(1-methyl-2,3-dihydro-1H-5-isoindolyl)-4-oxo-1,4-dihydro-3- quinoline-carboxylic acid (hereinafter, referred to as T-3811). SOLUTION: The non-solvate of 2-[(1R)-1-methyl-2-trityl-2,3-dihydro-1H-5- isoindolyl]-1,3,6,2-dioxaazaborocane is suitable as an intermediate for producing T-3811. COPYRIGHT: (C)2003,JPO
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