反应详情

Using the procedure of Stage B of Example 1, 14.2 g of product of Stage B and 3.6 ml of hydrazine hydrate in 200 ml of ethanol were reacted to obtain 12 g of crude product which was chromatographed on silica (eluant CH2Cl2 --MeOH--NH4OH 8-2-0.04) to obtain the expected product, which is used as is for the synthesis.

1. customwere reacted
2. customto obtain 12 g of crude product which
3. customwas chromatographed on silica (eluant CH2Cl2 --MeOH--NH4OH 8-2-0.04)