方便的话帮我翻译一下这句话吧 in the presence of Cu(I) generated in situ by the reduction of copper sulfate (1.2 mg, 0.005 mmol) with sodium ascorbate (1.98 mg, 0.01 mmol).看不懂什么意思文章上下文是：Synthesis of the Triazol-CD-Monomer . The reaction of 6Iazido-6I-deoxycyclomaltoheptaose (2) (116 mg, 0.1 mmol) with 2-propynyl 2-methacrylate 2 (24.80 mg, 0.2 mmol) was carried out in DMF, in the presence of Cu(I) generated in situ by the reduction of copper sulfate (1.2 mg, 0.005 mmol) with sodium ascorbate (1.98 mg, 0.01 mmol).
