"Diazotized 5 amino 3 phenylpyrazole provide" trang 1 - tải miễn phí từ tailieunhanh
A new convenient synthesis of 3-hetaryl-pyrazolo[5,1-c][1,2,4]triazines

A new convenient synthesis of 3-hetaryl-pyrazolo[5,1-c][1,2,4]triazines
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