The acid-catalysed dehydration of some 4-amino-1, 2-diarylbutan-2-ols yields all four possible 4-amino-1, 2-diarylbutenes. The structure and configuration of pure isomers have been established from spectroscopic data, and the ability of these compounds to anatagonize histamine-induced contractions of the guinea-pig ileum is reported. The most potent derivatives are all cis(H/Ar)-4-amino-1, 2-diarylbut-2-enes. These results together with other data are discussed in terms of the possible structural and conformational requirements of histamine antagonists.
通过一些4-氨基-1,2-二芳基丁-2-醇的酸催化脱水,得到所有可能的4-氨基-1,2-二芳基丁烯。从光谱数据中确定了纯异构体的结构和构型,并报道了这些化合物对豚鼠回肠组织中组胺诱导的收缩的拮抗作用。最有效的衍生物都是顺式(H/Ar)-4-氨基-1,2-二芳基丁-2-烯。这些结果以及其他数据被讨论为组胺拮抗剂可能的结构和构象要求。