A process for the preparation of a cyclopropylacetylene derivative of the formula (V):
 comprises the steps of reacting a propynol derivative of the formula (I):
 with a propane derivative of the formula (VI):
 in the presence of a base in an amount of 2 or more equivalents relative to the propynol derivative to give a cyclopropane derivative of the formula (III):
 deprotecting the protecting group for the hydroxyl group of the cyclopropane derivative to give a cyclopropylpropynol derivative of the formula (IV):
 and subjecting the cyclopropylpropynol derivative to retro-ethynylation. In the above formula R1, R2, R3, R4 and R5 represent a hydrogen atom, or an alkyl, alkenyl, aryl or aralkyl each of which may have a substituent, R6 and R7 represent a hydrogen atom, or an alkyl, alkenyl, aryl or aralkyl each of which may have a substituent, or R6 and R7 may together form a ring, R8 represents a protecting group for a hydroxyl group and X and Y represent a leaving group.
                            一种制备式(V)
环丙炔衍
生物的工艺:
 包括以下步骤 式(I)的
丙炔醇衍
生物与式(VI)的
丙烷衍
生物反应
 与式 (VI) 的
丙烷衍
生物反应:
 与式 (VI) 的
丙烷衍
生物反应,得到式 (III) 的
环丙烷衍
生物:
 对
环丙烷衍
生物羟基的保护基进行脱保护,得到式(IV)的
环丙炔醇衍
生物:
 并将环丙基
丙炔醇衍
生物进行反
乙炔化反应。在上式中,R1、R2、R3、R4 和 R5 代表氢原子,或烷基、烯基、芳基或芳烷基,其中每个烷基、烯基、芳基或芳烷基可以有一个取代基,R6 和 R7 代表氢原子,或烷基、烯基、芳基或芳烷基,其中每个烷基、烯基、芳基或芳烷基可以有一个取代基,或 R6 和 R7 可以共同形成一个环,R8 代表羟基的保护基团,X 和 Y 代表离去基团。