發送短信 : Crystal structure of 2RS,5-diphenyl-8RS-3,5,7-triazatricyclo[6.5.1.0 3,7]-tetradeca-9,11,13-triene-4,6-dione, C23H 19N3O2

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 `-` --`  `-----`  `-----`    `-----`     `-`'