A solid composition comprising nanoparticles of atovaquone dispersed within one or more carrier materials, wherein the atovaquone is present in an amount of at least 10 wt %. Also described is an intramuscularly- or subcutaneously-injectable formulation of nanoparticles of atovaquone.
The asymmetric alkylation reaction of glycine derivatives catalyzed by the novel chiral phase transfer catalysts
作者:Ziyu Wang、Daorui Huang、Pei Xu、Xiaoyang Dong、Xiaolong Wang、Zhenya Dai
DOI:10.1016/j.tetlet.2015.01.063
日期:2015.2
Herein a new series of chiral phasetransfercatalysts derived from the cinchona alkaloids were synthesized and applied in the asymmetric alkylation of glycine derivatives with high yields and moderate to excellent ee values (39.5–99.7%).
Isomérisation<i>cis</i>-<i>trans</i>en Série Alkyl-4-vinyl-3-pipéridine par Sigmatropie [3.3]. Synthèse des Epivinyl Isomères des Alcaloïdes du Quinquina
作者:Gérard Engler、Henri Strub、Jean-Pierre Fleury、Hans Fritz
DOI:10.1002/hlca.19850680329
日期:1985.5.15
cis, trans Isomerization of 4-Alkyl-3-vinylpiperidines by [3.3] Sigmatropic Rearrangement. Synthesis of Epivinyl Isomers of Cinchona Alkaloids