PROCESS FOR PREPARING 2-AMINO MALONIC ACID DERIVATIVES AND 2-AMINO-1,3 - PROPANEDIOL DERIVATIVES, AND INTERMEDIATES FOR PREPARING THE SAME
申请人:——
公开号:US20010008945A1
公开(公告)日:2001-07-19
A process for preparing 2-amino malonic acid derivatives of formula (1):
1
wherein A is linear or branched chain alkylene having from 1 to 10 carbon atoms, R
1
is linear or branched chain alkyl having from 2 to 20 carbon atoms, R
2
and R
3
are the same or different, and are lower alkyl or aralkyl, and R
4
is a protecting group,
which process comprises the steps of reducing a compound of formula (6):
2
wherein A is linear or branched chain alkylene having from 1 to 10 carbon atoms, R
1
is linear or branched chain alkyl having from 2 to 20 carbon atoms, R
2
and R
3
are the same or different, and are lower alkyl or aralkyl, and R
4
is a protecting group.
一种制备式(1)的2-氨基丙二酸衍生物的方法:其中A是具有1至10个碳原子的线性或支链烷基,R1是具有2至20个碳原子的线性或支链烷基,R2和R3相同或不同,是低碳基或芳基烷基,R4是保护基,该方法包括还原式(6)的化合物的步骤:其中A是具有1至10个碳原子的线性或支链烷基,R1是具有2至20个碳原子的线性或支链烷基,R2和R3相同或不同,是低碳基或芳基烷基,R4是保护基。