资讯

2,6-Disubstituted dihydropyrans are a common feature in many bioactive polyketides, including the anticancer marine polyketide laulimalide. While much of the uncharacterized biosynthetic pathway for ...
Johnson & Johnson said Wednesday that it is recalling five of its sunscreen products after some samples were found to contain low levels of benzene, a chemical that can cause cancer with repeated ...
An efficient approach for the construction of trifluoromethylated all-carbon quaternary stereocenters: enantioselective Ni( ii )-catalyzed Michael addition of 2-acetyl azaarene to β,β-disubstituted ...