发明授权
US4477451A 5,6-Dihydro-11-methylenemorphanthridin-6-ones, their preparation and drugs containing these compounds 失效
5,6-二氢-11-亚甲基呋喃-6-酮,其制备方法和含有这些化合物的药物

5,6-Dihydro-11-methylenemorphanthridin-6-ones, their preparation and
drugs containing these compounds
摘要:
5,6-Dihydro-11-methylenemorphanthridin-6-ones of the formula I ##STR1## where R.sup.1, R.sup.2, R.sup.3 and R.sup.4 have the meanings given in the description, and their preparation and use.The novel substances are particularly useful for treating gastric and duodenal ulcers.
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