This disclosure describes platinum complexes of 3.beta., 4.alpha.-diamino-1.alpha.,2.alpha.-cyclohexanediol which possess the property of inhibiting the growth of tumors in mammals.
Diastereoselective [4+2] Cycloadditions of Acyl Nitroso Compounds
作者:Stephen F. Martin、Michael Hartmann、John A. Josey
DOI:10.1016/s0040-4039(00)92508-5
日期:1992.6
A highly diastereoselective route to unsaturated amino alcohol derivatives has been developed that features the [4+2] cycloaddition of chiral acyl nitrosocompounds to a variety of conjugated dienes; a useful oxidative method for generating acyl nitrosocompounds from the corresponding hydroxamic acids under very mild conditions was also discovered.
Hetero-Diels–Alder Reaction of Phosphinyl and Phosphonyl Nitroso Alkenes with Conjugated Dienes: An Aza-Cope Rearrangement
作者:Jesús M. de los Santos、Roberto Ignacio、Gloria Rubiales、Domitila Aparicio、Francisco Palacios
DOI:10.1021/jo201116u
日期:2011.8.19
Phosphorylated nitroso alkenes react with cyclic dienes such as cyclopentadiene or cyclohexadiene to afford hetero Diels–Alder-type cycloadducts where the nitroso alkene participates as dienophile component and the cyclic olefin acts as the 4π-electron (diene) system. Subsequent aza-Cope rearrangement affords highly functionalized 5,6-dihydro-4H-1,2-oxazines. Conversely, the reaction of TMS-substituted
磷酸化的亚硝基烯烃与环二烯(例如环戊二烯或环己二烯)反应,生成杂Diels–Alder型环加合物,其中亚硝基烯烃作为亲二烯体组分参与其中,环烯烃充当4π电子(二烯)系统。随后的aza-Cope重排提供了高度官能化的5,6-二氢-4 H -1,2-恶嗪。相反,TMS取代的环戊二烯(双亲体)与亚硝基烯烃作为杂二烯的反应直接导致双环1,2-恶嗪。理论研究与实验结果以及提出的新aza-Cope重排相符。
Amino acid derivatives
申请人:Hoffmann-La Roche Inc
公开号:US05378712A1
公开(公告)日:1995-01-03
N-Acyl-.alpha.-aminocarboxylic acid derivatives of the formula ##STR1## wherein L, R' to R"' and Q have the significance given in the description, can be used for the treatment or control of illnesses which are caused by the binding of adhesive proteins to blood platelets and by blood platelet aggregation and cell-cell adhesion.