2,3-Diarylindenes and 2,3-diarylindenones: synthesis, molecular structure, photochemistry, estrogen receptor binding affinity, and comparisons with related triarylethylenes
作者:Gregory M. Anstead、Robert J. Altenbach、Scott R. Wilson、John A. Katzenellenbogen
DOI:10.1021/jm00402a011
日期:1988.7
nonsteroidal estrogens. In contrast to the diphenyldihydronaphthalenes, the diarylindene and -indenone systems undergo photocyclization to phenanthrenes inefficiently. The estrogen receptor binding affinity of these systems is reasonably high (9-59% relative to estradiol), with the indenone systems having higher affinity than the indenes; additional hydroxyl substitution raises the affinity of the indenes
制备了两个具有潜在的荧光和光致荧光性质的2,3-二苯基茚和-茚满酮体系,并作为雌激素受体的配体进行了研究。通过适当的α-苄基脱氧安息香素系统的弗里德尔-克拉夫茨环化,以及通过茚满的氧化,通过α-苯甲酰基脱氧安息香素的环化或通过对托兰的酰基离子攻击而制得的茚满,制备茚满系统。对2,3-二苯茚基和茚满酮体系的晶体学分析表明,苯基取代基被扭曲出茚满/茚满酮体系的平面,茚满酮中的两个扭转角均大于茚满体系。与五元环相连的苯基使这些系统比相关的1,2-二苯基-3,4-二氢萘和三芳基乙烯非甾体雌激素具有更大的平面度。与二苯基二氢萘相反,二芳基茚和-茚满酮体系不能有效地进行光环化成菲。这些系统的雌激素受体结合亲和力相当高(相对于雌二醇为9-59%),茚满酮系统的亲和力高于茚满;额外的羟基取代提高了茚的亲和力,但降低了茚满的亲和力。这些趋势可以通过考虑分子体积或表面积(与扭转角)和特定极性相互作用的差异来合