This article deals with: 1) derivatives of_delta_as new industrial products_: (a) general formula (I). Who are they? Two valence gammaAlpha-lambda___hydrocarbon chain and paid vacation plane or delta-lambda___, X are similar, the hydrogen atoms or halogens of pi-lambda___, n equals 2 and R-pi____, or the United States Individual hydrogen,It is impossible or impossible. B) Salts and their derivatives____________a).Two) the preparation of derivatives.
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