6-{2-[3-(2-amino-1,1-dimethyl-ethyl)-phenyl]-ethyl}-6-cyclopentyl-dihydro-pyran-2,4-dione trifluoroacetate 、
吡唑-3-甲酸 在
HATU 、
三乙胺 作用下,
以
DMF (N,N-dimethyl-formamide) 为溶剂,
以33%的产率得到1H-Pyrazole-3-carboxylic acid (2-{3-[2-(2-cyclopentyl-4,6-dioxo-tetrahydro-pyran-2-yl)-ethyl]-phenyl}-2-methyl-propyl)-amide