(R)-3-(N,N-Dimethyiamino)pyrrolidine derivatives of formula (I), wherein the meaning for Cy1 is as disclosed in the description. These compounds are useful as JAK3 kinase inhibitors.
A process for the preparation of a polycyclic dye of Formula (1): ##STR1## by reacting a compound of Formula (2): ##STR2## with a benzofuranone of the Formula (3): ##STR3## wherein: Ring A is unsubstituted or is substituted by from one to three groups; Ring B is unsubstituted, apart from the nitro group, or is substituted by one or two further groups; R is H, optionally substituted alkyl or optionally substituted aryl; and Z is an oxyammonium group, and certain novel compounds of Formula (2) are disclosed. The process provides a convenient route to polycyclic dyes which are useful for the coloration of synthetic textile materials particularly polyesters.
DeBoos Gareth A., Milner David J., Synth. Commun, 24 (1994) N 7, S 965-976
作者:DeBoos Gareth A., Milner David J.
DOI:——
日期:——
US5304659A
申请人:——
公开号:US5304659A
公开(公告)日:1994-04-19
Vicarious Nucleophilic Substitution of Nitrobenzenes
作者:Gerath A. DeBoos、David J. Milner
DOI:10.1080/00397919408020772
日期:1994.4
Abstract Vicariousnucleophilicsubstitution (VNS) by dichloroacetate and other reagents has been applied in good yield to various ortho-substituted nitrobenzenes including 2-nitrotoluene and 2-nitro ethylbenzene. For alkyl nitrobenzenes, ease of VNS increased para < ortho < meta and methyl < ethyl < iso-propyl. Formation of chlorine-free products upon VNS by methyl dichloroacetate suggests the involvement