(4-Methoxy-phenyl)-propynoic acid ethyl ester → 7-(2-{1-[2-Ethoxycarbonyl-1-(4-methoxy-phenyl)-vinyl]-1H-indol-5-yloxy}-ethyl)-3,4-dihydro-2H-[1,8]naphthyridine-1-carboxylic acid tert-butyl ester
Reaction equation
[CH2:1]([O:3][C:4](=[O:15])[C:5]#[C:6][C:7]1[CH:12]=[CH:11][C:10]([O:13][CH3:14])=[CH:9][CH:8]=1)[CH3:2].[C:16]([O:20][C:21]([N:23]1[C:32]2[C:27](=[CH:28][CH:29]=[C:30]([CH2:33][CH2:34][O:35][C:36]3[CH:37]=[C:38]4[C:42](=[CH:43][CH:44]=3)[NH:41][CH:40]=[CH:39]4)[N:31]=2)[CH2:26][CH2:25][CH2:24]1)=[O:22])([CH3:19])([CH3:18])[CH3:17]>>[C:16]([O:20][C:21]([N:23]1[C:32]2[C:27](=[CH:28][CH:29]=[C:30]([CH2:33][CH2:34][O:35][C:36]3[CH:37]=[C:38]4[C:42](=[CH:43][CH:44]=3)[N:41]([C:6]([C:7]3[CH:8]=[CH:9][C:10]([O:13][CH3:14])=[CH:11][CH:12]=3)=[CH:5][C:4]([O:3][CH2:1][CH3:2])=[O:15])[CH:40]=[CH:39]4)[N:31]=2)[CH2:26][CH2:25][CH2:24]1)=[O:22])([CH3:19])([CH3:17])[CH3:18]Participants
Reactant 2
Product 1
Procedure
The title compound was synthesized from (4-methoxy-phenyl)-propynoic acid ethyl ester and 7-[2-(1H-Indol-5-yloxy)-ethyl]-3,4-dihydro-2H-[1,8]naphthyridine-1-carboxylic acid tert-butyl ester using the procedure described in Example 16, step (d1), in a 88% yield as an E/Z isomeric mixture. 1H NMR (CDCl3) [E/Z mixture] δ 7.32 (m, 2H), 7.21 (m, 1H), 7.11-6.85 (m, 6H), 6.70 (m, 1H), 6.50 (m, 1H), 6.13 (s, 0.5H), 6.03 (s, 0.5H), 4.40 (m, 2H) 4.10 (q, 2H, J=7.2 Hz), 3.86 (s, 1.5H), 3.83 (s, 1H), 3.76 (t, 2H, J=5.2 Hz), 3.70 (t, 2H, J=6.0 Hz), 3.20 (t, 2H, J=6.8 Hz), 2.70 (t, 2H, J=6.8 Hz, J=6.8 Hz), 1.90 (m, 2H), 1.49 (s, 9H), 1.23 (t, 1.5H, J=7.2 Hz), 1.18 (t, 1.5H, J=7.2 Hz). Mass Spectrum (LCMS, ESI) calculated for C30H32N3O4 498.2 (M-Boc+H); found 498.4.
Sources & evidence
- ORD record
- ord-430452f638ba4f008d3b69decae44367
- Source dataset
- uspto-grants-2005_02
- Patent number
- US06855722B2
Reaction notes
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