Anticholinergic Agents. 2. Absolute Configurations of 2-Methyl-1,1-Diphenyl-3-(1-piperidyl)-1-propanol and 2-Methyl-1,1-diphenyl-3-(1-pyrrolidyl)-1-propanol. Crystal Structures of the Corresponding Mandelates.
作者:Peter Sjö、Per Groth、Arne Jørgen Aasen、Arne Kjekshus、Harald Bratsberg
DOI:10.3891/acta.chem.scand.44-0957
日期:——
optically resolved employing (R)- and (S)-mandelic acid, respectively, as resolving agents. The absolute configurations of the enantiomers of 4 and 5 have been established as (-)-(R) and (+)-(S) by crystal structure analyses of (-)-(R)-2-methyl-1,1-diphenyl-3-(1-piperidinio)-1-propanol (+)-(S)-mandelate and (+)-(S)-2-methyl-1,1-diphenyl-3-(1-pyrrolidinio)-1-propanol (-)-(R)-mandelate. The corresponding
外消旋的2-甲基-1,1-二苯基-3-(1-哌啶基)-1-丙醇(4)和2-甲基-1,1-二苯基-3-(1-吡咯烷基)-1-丙醇(5)分别合成了(R)-和(S)-扁桃酸作为拆分剂并进行了光学拆分。通过(-)-(R)-2-甲基-1,1-的晶体结构分析,已确定4和5的对映异构体的绝对构型为(-)-(R)和(+)-(S)。二苯基-3-(1-哌啶子基)-1-丙醇(+)-(S)-扁桃酸酯和(+)-(S)-2-甲基-1,1-二苯基-3-(1-吡咯烷二)-1 -丙醇(-)-(扁桃酸酯)。已经制备了相应的甲硫磺。