3'-Amino-2'-hydroxybiphenyl-3-carboxylic acid (BPCA) and related compounds have been prepared using compounds such as: wherein R1 is -H, -Cl or -F; R2 is -Br or -I; and R3 is -H or -N02. BPCA is useful, for example, in the preparation of Eltrombopag.
3'-
氨基-2'-羟基
联苯-3-
羧酸(BPCA)及相关化合物已经利用化合物制备,其中R1为-H、-Cl或-F;R2为-Br或-I;R3为-H或-N02。例如,BPCA在埃替莫帕格的制备中是有用的。