The invention provides a method for synthesis of compounds of formula
1
wherein R
1
and R
19
are as defined. Compounds of formula 12 are useful as intermediates for synthesizing compounds having pharmacological activity inhibiting cdk5, cdk2, and GSK-3.
该发明提供了一种合成化合物的方法,其
化学式为1,其中R1和R19如所定义。化合物12的
化学式对于合成具有抑制cdk5,cdk2和GSK-3药理活性的化合物的中间体是有用的。