李娜:[文件]薛峰:Please provide details of the synthetic route, including all intermediates, reagents and solvents used to prepare the material being sourced. Has the supplier conducted a genotoxic risk assessment for this synthetic process? If YES, can this assessment be provided? If there are any specific controls for genotoxic impurities in place, please provide details of the analytical method used and typical batch data. Please provide the specification for the material being sourced, including all specified impurities. Please provide typical batch data (minimum three batches) If toluene, acetone or methylisobutylketone (MIBK) are used as solvents in the process, please provide any data on residual benzene content in the solvents and/or the material being sourced.