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The petroleum ether and ethanolic extract from the epigean part of Conyza canadensis exhibits a significant anti-inflammatory effect on rats with a carrageenin and formalin oedema. Eight sesquiterpenic hydrocarbons with the highest anti-inflammatory activity were found in the petroleum ether fraction (beta-santalene, beta-himachalene, cuparene,(More)
Reaction of 2,3,5,6-tetramethylphenacyl halides with formamide did not produce the expected 4(5)-(2,3,5,6-tetramethylphenyl)imidazole, but 4(5)-(2,3,5,6-tetramethylbenzoyl)imidazole (VII) was isolated as the major product together with 5-(2,3,5,6-tetramethylphenyl)oxazole (III), alpha-formylamino-2,3,5,6-tetramethylacetophenone (IV) and(More)
Two oxytocin analogues were synthesized by fragment condensation (6 -]3) in the presence of dicyclohexylcarbodiimide and I-hydroxybenzotriazole. In one of the analogues, proline in the position 7 and leucine in the position 8 were substituted by 2MI!-(2-oxo-3-aminopyrrolidinyl)]-q-methylpentanoic acid, in the other proline was replaced by(More)
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