1-Methyl-3-(methylaminomethyl)indole → (E)-7-{2-[Methyl-(1-methyl-1H-indol-3-ylmethyl)-carbamoyl]-vinyl}-2-oxo-1,2,3,5-tetrahydro-pyrido[2,3-e][1,4]diazepine-4-carboxylic acid benzyl ester

Participants

Reaction Steps

According to the procedure of Example 1 (a), except substituting methyl-(1-methyl-1H-indol-3-ylmethyl)amine for the methyl-(1-propyl-naphthalen-2-ylmethyl)amine, and substituting (E)-7-(2-carboxy-vinyl)-2-oxo-1,2,3,5-tetrahydro-pyrido[2,3-e][1,4]diazepine-4-carboxylic acid benzyl ester hydrochloride for the (E)-3-(4-methyl-2-oxo-2,3,4,5-tetrahydro-1H-pyrido[2,3-e][1,4]diazepin-7-yl)acrylic acid hydrochloride, the title compound (0.29 g, 73%) was prepared as an off-white powder and as a mixture of amide rotamers: 1H NMR (300 MHz, DMSO-d6) δ 10.43 (s, 1H), 8.51 (s, 1H), 8.11-8.25 (m, 1H), 7.53-7.64 (m, 2H), 7.30-7.42 (m, 5H), 7.12-7.20 (m, 4H), 6.98-7.03 (m, 1H), 5.03-5.08 (m, 2H), 4.75-4.93 (m, 2H), 4.62 (s, 2H), 4.41 (s, 2H), 3.73-3.77 (m, 3H), 2.91-3.06 (m, 3H); MS (ESI) m/e 524 (M+H)+.

Provenance & Evidence