The present invention provides cyclic depsipeptide compounds of formula (I) and compositions comprising the compounds that are effective against parasites that harm animals, including humans. The compounds and compositions may be used for combating parasites in or on animals including mammals and birds. The invention also provides for an improved method for eradicating, controlling and preventing parasite infestation in animals, including birds and mammals.
Homogeneous and Heterogeneous Pd-Catalyzed Selective C–P Activation and Transfer Hydrogenation for “Group-Substitution” Synthesis of Trivalent Phosphines
作者:Ming Lei、Xingyu Chen、Yingjie Wang、Liran Zhang、Hong Zhu、Zhiqian Wang
DOI:10.1021/acs.orglett.2c00844
日期:2022.4.22
reported. The alkyl groups were introduced by alkylation of phosphines to form phosphonium salts. The “de-arylation” of phosphonium salts was achieved by C–P activation and transfer hydrogenation with homogeneous or heterogeneous Pd (0) catalysts. With this method, a series of trivalent phosphines were prepared from commercially available triarylphosphines. A chiral monophosphine ligand could be prepared
Photoinduced generation of phosphoranyl radicals offers a versatile strategy to access a variety of synthetically valuable radicals. A long-standing challenge remains in the regulation of phosphoranyl radical to undergo α-scission pathway, although the β-scission mode has been intensively studied. We herein developed an unprecedented protocol for selective α-scission of the P(OH)R3 radical intermediate
The present invention provides cyclic depsipeptide compounds of formula (I) and compositions comprising the compounds that are effective against parasites that harm animals, including humans. The compounds and compositions may be used for combating parasites in or on animals including mammals and birds. The invention also provides for an improved method for eradicating, controlling and preventing parasite infestation in animals, including birds and mammals.