Syntheses and pharmacological characterization of achiral and chiral enantiopure C/Si/Ge-analogous derivatives of the muscarinic antagonist cycrimine: a study on C/Si/Ge bioisosterism
作者:Reinhold Tacke、Thomas Kornek、Tilman Heinrich、Christian Burschka、Martin Penka、Melanie Pülm、Christine Keim、Ernst Mutschler、Günter Lambrecht
DOI:10.1016/s0022-328x(01)01179-2
日期:2001.12
The C/Si/Ge-analogous compounds rac-Ph(c-C5H9)El(CH2OH)CH2CH2NR2 (NR2=piperidino; El=C, rac-3a; El=Si, rac-3b; El=Ge, rac-3c) and (c-C5H9)2El(CH2OH)CH2CH2NR2 (NR2=piperidino; El=C, 5a; El=Si, 5b; El=Ge, 5c) were prepared in multi-step syntheses. The (R)- and (S)-enantiomers of 3a–c were obtained by resolution of the respective racemates using the antipodes of O,O′-dibenzoyltartaric acid (resolution
C / Si / Ge类似化合物rac -Ph(c -C 5 H 9)El(CH 2 OH)CH 2 CH 2 NR 2(NR 2 = piperidino; El = C,rac - 3a ; El = Si,rac - 3b ; El = Ge,rac - 3c)和(c -C 5 H 9)2 El(CH 2 OH)CH 2 CH 2 NR 2(NR 2 = piperidino; El = C,5a ; El = Si,5b ; 通过多步合成制备E1 = Ge,5c)。的([R )-和(小号的) -对映体3A - Ç通过使用的对映体的相应外消旋体拆分获得ø,ö '-dibenzoyltartaric酸(分辨率为外消旋-图3a,)Ô,ø -二- ' p -甲苯基酒石酸(rac - 3b的拆分)或1,1'-联萘-2,2'-二基磷酸氢盐(rac - 3c的拆分)。(R)-的对映体纯度3a -