Chemo- and stereoselective synthesis of benzocycloheptene and 1-benzoxepin derivatives as α-sympathomimetic and anorexigenic agents
作者:Vishnu K. Tandon、Kunwar A. Singh、Anoop K. Awasthi、J. M. Khanna、Bansi Lal、Nitya Anand
DOI:10.1016/j.bmcl.2004.03.064
日期:2004.6
The synthesis and pharmacological evaluation of cis- and trans-6-amino-6,7,8,9-tetrahydro-5H-benzocyclohepten-5-ols 4a-c and 5a-c and cis- and trans-4-amino-2,3,4,5-tetrahydro-1-benzoxepin-5-ols 4d-f and 5d-f were carried out. Chemo- and stereoselective synthesis of 5a-f was achieved by reduction of corresponding alpha-amino ketones 3a-f with LiAl(t-BuO)3H. cis-4-Amino-2,3,4,5-tetrahydro-1-benzoxepin-5-ol
顺式和反式-6-氨基-6,7,8,9-四氢-5H-苯并环庚烯-5-醇4a-c和5a-c以及顺式和反式-4-氨基-2的合成及药理学评估进行了3,4,5-四氢-1-苯并氧杂-5-醇4d-f和5d-f。5a-f的化学和立体选择性合成是通过用LiAl(t-BuO)3H还原相应的α-氨基酮3a-f来实现的。展示了cis-4-Amino-2,3,4,5-tetrahydro-1-benzoxepin-5-ol 4d和trans-4-amino-2,3,4,5-tetrahydro-1-benzoxepin-5-ol 5d分别在LD50 800和500 mg / kg以及ED50 75和55 mg / kg的剂量下,小鼠具有明显的厌食活性,而类似物cis-2,3-dihydroxy-6-amino-6,7,8,9-四氢-5H-苯并环庚烯-5-醇8显示出典型的α-拟交感神经活性。