申请人:Hoffmann-La Roche Inc.
公开号:US06326501B1
公开(公告)日:2001-12-04
A process for manufacturing a methylated indole compounds of the formula:
where R1 is selected from the group consisting of halogen, C1-C6 alkyl, C1-C6 alkenyl, —OCH3, —NO2, —CHO, —CO2CH3, and —CN, and R2 is selected from the group consisting of C1-C6 alkyl, —CO2CH3, —CN, —CHO, —NH2, —N(C1-C6 alkyl)2, —(CH2)nCOOH, and —(CH2)nCN, where n is an integer from 1 to 4, inclusive, involves reacting a compound of the formula:
with dimethyl carbonate in the presence of a base or a catalyst at ambient pressure.
一种制造甲基吲哚化合物的过程,其化学式如下:其中R1选自卤素、C1-C6烷基、C1-C6烯基、—OCH3、—NO2、—CHO、—CO2CH3和—CN所组成的群体,R2选自C1-C6烷基、—CO2CH3、—CN、—CHO、—NH2、—N(C1-C6烷基)2、—(CH2)nCOOH和—(CH2)nCN所组成的群体,其中n为1至4的整数,包括与化合物的反应式如下:在环境压力下,在碱或催化剂的存在下,与碳酸二甲酯发生反应。