The synthesis of cyclo ( - Ab 7 - Aib - Phe - D - Pro - ) which uses solid phase peptide synthesis with N - Fmoc protection is faild.

本论文尝试用固相法氨基酸N端Fmoc保护策略合成cyclo ( -Ab7-Aib-Phe-D-Pro- ).但是最终产物经ESI-MS分析不是目标产物,故改用液相法合成目标化合物.

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Finally , cyclo ( - Ab 7 - Aib - Phe ( 2 - Me ) - D - Pro - ) is successfully prepared by using liquid phase peptide synthesis with Boc protection.

Boc -Ab7-Aib-Phe( 2-Me)-D-Pro-OBzl脱除两端保护得到线性肽链经过环化得到目标产物cyclo ( -Ab7-Aib-Phe ( 2-Me ) -D-Pro- ),收率0.8%.

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AC excited generator ( ACEG ) and cyclo converter are principal harmonic sources in ACEG systems.

交流励磁 电机和交交变频器是交流励磁电机系统中最主要的两个谐波源.

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Silazanes were divided into chain - silazane, cyclo - silazane and poly - silazane according to the material variety and synthesis method.

硅氮烷根据原料以及合成方法的不同可分为链 硅氮 烷、环硅氮烷、聚硅氮烷等.

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The feasibility of the new cyclo converter and its performancesteady state are validated by simulation.

通过仿真计算验证了其反送功率至工频系统可行性.

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According to the control characteristics of cyclo converter, paper proposes a new multi - CPU computer control system.

根据交-交变频器的控制特性, 提出了较为新颖的多CPU计算机控制系统结构.

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