in 23 ml of dimethyl sulfoxide was stirred for five minutes and treated with 5 3 g 0 012 mole of n 4 2 3 4 dimethoxyphenyl ethyl phenyl 3 methoxy 1 methyl 1h indole 2 carboxamide followed by 2 0 ml 3 8 g 0 024 mole of iodoethane the mixture was stirred at room temperature for 20 hours poured into 300 ml water and extracted with dichloromethane 3 u00d7 300 ml the combined organic layers were washed with water 1 u00d7 200 ml dried sodium sulfate and evaporated recrystallization of the residue from methanol yielded 4 3 g 76 yield of the n ethylamide product mp 133 u00b0 134 u00b0 c in a manner analogous to examples 167 169 using appropriate starting materials the following additional intermediates are prepared 1h indole 2 acetamide n 4 2 3 4 dimethoxyphenyl ethyl phenyl 3 hydroxy 5 6 dimethyl u03b1 oxo see scheme ix formula i wherein q is i 7 wherein b is two r 1 is 5 6 dimethyl r 2 is hydrogen x is hydrogen y is 2 r 5 is hydrogen r 6 is 4 2 3 4 dimethoxyphenyl ethyl a mixture of 12 5 g 0 054 mole of 3 hydroxy 5 6 dimethyl u03b1 oxo 1h indole 2 acetic acid preparation described in u s pat no 4 260 544 and 14 4 g 0 058 mole of n ethoxy carbonyl 2 ethoxy 1 2 dihydroquinoline 34 eedq 34 in 1500 ml of toluene plus 200 ml.