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![1,2-dimethyl-3H-benzo[b]cyclopenta[d]thiophene](https://wds-service-1258344699.file.myqcloud.com/20/8774/gif/1628250926043cbe252744ece749e.gif?imageMogr2/thumbnail/225x&version=1628250908)
![METHYL 4-(4-[(4-METHOXYBENZOYL)AMINO]-3-NITROPHENYL)-3-METHYL-4-OXOBUTANOATE](https://wds-service-1258344699.file.myqcloud.com/20/8774/png/1660897831967c93b7d3a74ac5554.png?imageMogr2/thumbnail/225x&version=1660897833)
