5,6-Dimethoxy-N-methyl-1,2,3,4-tetrahydronaphthalen-2-amine → 1-[2-(4,5-Dimethoxy-2-nitro-phenyl)-1-oxo-ethylamino]-3-[N-methyl-N-(6,7-dimethoxy-1,2,3,4-tetrahydronaphth-2-yl)-amino]-propane

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The title compound of this paragraph is prepared from 4,5-dimethoxy-2-nitrophenylacetic acid (5.25 g, 0.0217 mol) and of 1-amino-3-[N-methyl-N-(6,7-dimethoxy-1,2,3,4-tetrahydronaphth-2-yl)-amino]-propane (6.04 g, 0.0218 mol) analogously to Example R(c). Yield: 8.6 g. Rf value: 0.8 (alumina, eluant: 95 parts by volume of methylene chloride+5 parts by volume of ethanol).

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