Benzoxazoles substituted in the 2-position with sulfhydryl or halogen and substituted in the 5- or 6-position with an acetic or propionic acid group or a salt or ester thereof or a nitrile convertible thereto useful as intermediates in the preparation of 5- or 6-Substituted benzoxazole propionic or acetic acid derivatives, substituted in the 2-position of the oxazole nucleus by a group of the formula AR.sup.4 wherein A is --CH.sub.2 --, --CO--, --CHOR--, or --NR--, wherein R is hydrogen, C.sub.1-6 alkyl or C.sub.2-7 acyl, and R.sup.4 is optionally substituted phenyl, useful as non-steroidal, non-narcotic, analgesic, antipyretic and anti-inflammatory agents.
2-位上取代
硫醇或卤素的苯并
噁唑,5-或6-位上取代
乙酸或
丙酸基团或其盐或酯或可转化为腈基团的苯并
噁唑,可用作制备2-位上取代为AR.sup.4式团的5-或6-取代苯并
噁唑丙酸或
乙酸衍
生物的中间体,其中A为--CH.sub.2--、--CO--、--CHOR--或--NR--,其中R为氢、C.sub.1-6烷基或C.sub.2-7酰基,R.sup.4为可选取代的苯基,可用作非甾体、非麻醉、镇痛、退烧和抗炎制剂。