求翻译：本文从简单的底物氯乙酸乙酯和丙烯酸乙酯出发，进行不对称催化合成手性环丙烷二羧酸乙酯，再经水解得到手性环丙烷二羧酸。是什么意思？

Starting from simple substrates ethyl chloroacetate and ethyl acrylate, catalytic asymmetric synthesis of chiral cyclopropane carboxylic acid ethyl ester, Chiral Cyclopropane dicarboxylic acid by hydrolysis.

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This article embarks from the simple substrate ethyl monochloro acetate and the ethyl acrylate, carries on catalyzes the synthesis chiral ethylene-malonic acid ethyl ester assymetrically, again passes through the hydrolisis to obtain the chiral ethylene-malonic acid.

This article from a simple substrate of n-ethyl acetate and ethyl acrylate, and catalytic asymmetric synthesis of Chiral cyclopropane carboxylic acid ethyl ester, undergo hydrolysis are Chiral cyclopropane dicarboxylic acid.

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