1,4-Dioxa-8-azaspiro(4.5)decane → 8-Methoxy-4-[[4-[[[1-(phenylmethyl)-4-piperidinyl]amino]carbonyl]phenyl]amino]-3-quinoline-carbox-amide

Participants

Reaction Steps

N-[1-[4-(1,1-Dimethylethyl)pheny]]methyl]-4-piperidiny]]-8-methoxy-4-[[4-[[[1-(phenylmethyl)-4-piperidinyl]amino]carbonyl]phenyl]amino]-3-quinoline-carbox-amide was prepared as a hygroscopic solid (0.2 hydrate) by coupling 8-methoxy-4-[[4-[[[1-(phenylmethyl)-4-piperidinyl]amino]carbonyl]phenyl]amino]-3-quinoline-carboxylic acid and 1-[[4-(1,1-dimethylethyl)phenyl]methyl]-4piperidinamine as described for Example 17, Step 5. 8-Methoxy-4-[[4-[[[1-(phenylmethyl)-4-piperi-dinyl]amino]carbonyl]phenyl]amino]-3-quinolinecarboxylic acid can be prepared as described for 7-chloro-4-[[4-[[[1-(phenylmethyl)-4-piperidinyl]amino]carbonyl]phenyl]amino]-3-quinolinecarboxylic acid in Example 17, Steps 1-4, by starting with 1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid ethyl ester in Step 1. 1,4-Dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid ethyl ester can be prepared as described by C. C. Price et al in J. Am. Chem. Soc., 68, 1204 (1946). 1-[[4-(1,1-Dimethylethyl)phenyl]methyl]-4-piperidinamine can be prepared from 4-(tert-butyl)benzyl bromide and 1,4-dioxa-8-azaspiro[4.5]-decane as described in U.S. Pat. Nos. 3,875,165 and 4,816,464: mp 154°-162 ° C.; 1H NMR (Me2SO-d6, 400 MHz) δ9.47 (s, 1 H), 8.76 (s, 1 H), 8.39 (d, J=7.5 Hz, 1 H), 7.99 (d, J=7.6 Hz, 1 H), 7.68 (d, J=8.7 Hz, 2 H), 7.57 (d, jr=8.3 Hz, 1 H), 7.41 (m, 1 H), 7.10-7.36 (m, 10 H), 6.87 (d, J=8.7 Hz, 2 H), 3.95 (s, 3 H), 3.7 (m, 1 H), 3.2-3.6 (m, 5 H), 2.6-2.9 (m, 4 H), 1.8-2.1 (m, 4 H), 1.3-1.8 (m, 3 H), 1.24 (s, 9 H); Karl Fisher, 0.47% H2O.

Provenance & Evidence