Microwave-assisted synthesis of benzothiazole and benzoxazole libraries via PIFA promoted cyclocondensation of 2-aminothiophenols/2-aminophenols with aldehydes under one-pot condition in good to excellent yields was achieved. Twenty compounds have been investigated for their analgesic activity and showed moderate to good activity.
通过一锅法条件下,利用
PIFA促进的2-
氨基
硫酚/2-
氨基
酚与醛的环化缩合反应,实现了
苯并噻唑和
苯并
噁唑库的微波辅助合成,产率良好至优秀。对二十个化合物进行了镇痛活性研究,显示出中等至良好的活性。