Nonsteroidal antiinflammatory agents. V. Photolysis of 6,11-dihydro-11-oxodibenz(b,e)oxepin-3-acetic acid.
作者:HIROAKI TAGAWA、SHIRO KUBO
DOI:10.1248/cpb.32.3047
日期:——
Photolysis of 6, 11-dihydro-11-oxodibenz [b, e] oxepin-3-acetic acid (1, oxepinac) in 1N NaOH solution by sunlight gave 3-methyldibenz [b, e] oxepin-11 (6H)-one (2), 2-methylanthraquinone (3), 4-carboxy-3-(2-methylphenoxy) phenylacetic acid (4) and 4-(2-carboxybenzyl)-3-hydroxyphenylacetic acid (5). Their structures were established by direct comparison with synthetic samples (2, 4, 5) and a commercial sample (3).
6, 11-二氢-11-氧二苯并[b, e]氧杂卓-3-乙酸(1, oxepinac)在 1N NaOH 溶液中被阳光光解,得到 3-甲基二苯并[b、e]氧杂卓-11(6H)-酮(2)、2-甲基蒽醌(3)、4-羧基-3-(2-甲基苯氧基)苯乙酸(4)和 4-(2-羧基苄基)-3-羟基苯乙酸(5)。通过与合成样品(2、4、5)和商业样品(3)直接比较,确定了它们的结构。