申请人:Sterling Drug Inc.
公开号:US04202983A1
公开(公告)日:1980-05-13
3-R.sub.1 -6(eq)-R.sub.4 -7-R.sub.2 "-8-R.sub.2 -9-R.sub.2 '-10-R.sub.2 "'-11(ax)-R.sub.3 -11(eq)-[CH.sub.2 CH.sub.2 CO(CH.sub.2).sub.n -X-Alk]-1,2,3,4,5,6-hexahydro-2,6-methano-3-benzazocines, useful as analgesics, are prepared by heating, with formic acid in an organic solvent or with certain ammonium formates, a lower-alkyl 1-R.sub.1 -3-[Alk-X-(CH.sub.2).sub.n -CO]-4a.alpha.-R.sub.3 -5.alpha.-R.sub.4 -6-R.sub.2 "-7-R.sub.2 -8-R.sub.2 '-9-R.sub.2 "'-1,2,3,4,4a,5,10,10a-octahydro-2,5-methanobenzo[g]quinoline-3-carboxylat e.
具有镇痛作用的1,2,3,4,5,6-六氢-2,6-甲基-3-苯并噁啉类化合物,式为3-R.sub.1-6(eq)-R.sub.4-7-R.sub.2"-8-R.sub.2-9-R.sub.2'-10-R.sub.2"'-11(ax)-R.sub.3-11(eq)-[CH.sub.2CH.sub.2CO(CH.sub.2).sub.n-X-Alk],可通过在有机溶剂中使用甲酸或某些铵甲酸加热较低烷基1-R.sub.1-3-[Alk-X-(CH.sub.2).sub.n-CO]-4a.alpha.-R.sub.3-5.alpha.-R.sub.4-6-R.sub.2"-7-R.sub.2-8-R.sub.2'-9-R.sub.2"'-1,2,3,4,4a,5,10,10a-八氢-2,5-甲氧基苯并[g]喹啉-3-羧酸酯制备。