1,4-Dioxa-8-azaspiro(4.5)decane → N-[1-[6-(Diethylamino)-6-oxohexyl]-4-piperidinyl]-8-methoxy-4-[[4-[[[1-(phenylmethyl)-4-piperidinyl]amino]carbonyl]-phenyl]amino]-3-quinolinecarboxamide

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Reaction Steps

N-[1-[6-(Diethylamino)-6-oxohexyl]-4-piperidinyl]-8-methoxy-4-[[4-[[[1-(phenylmethyl)-4-piperidinyl]amino]carbonyl]-phenyl]amino]-3-quinolinecarboxamide was prepared as a hygroscopic solid (1.14 hydrate) by coupling 8-methoxy-4-[[4-[[[1-(phenylmethyl)-4-piperidinyl]amino]-carbonyl]phenyl]amino]-3-quinolinecarboxylic acid and 4-amino-N,N-diethylol-piperidinehexanamide as described for Example 17, Step 5. 4-amino-N,N-diethyl-1-piperidinehexanamide can be prepared from 6-bromo-N,N-diethylhexanamide (Step 1) and 1,4-dioxa-8-azaspiro[4.5]-decane as described in U.S. Pat. Nos. 3,875,165 and 4,816,464: mp 115°-120° C.; 1H NMR (Me2SO-d6, 400 MHz) δ 9.49 (s, 1 H), 8.77 (s, 1 H), 8.39 (d, J=7.5 Hz, 1 H), 8.00 (d, J=7.7 Hz, 1 H), 7.69 (d, J=8.7 Hz, 2 H), 7.56 (d, J=1 H) 7.40 (m, 1 H), 7.1-7.3 (m, 6 H), 6.87 (d, J=8.68 Hz, 2 H), 3.95 (s, 3 H), 3.7 (m, 1 H), 3.1-3.6 (m, 7 H), 2.6-2.9 (m, 4 H), 2.1-2.3 (m, 4 H), 1.98 (t, J=11.0 Hz, 2 H), 1.65-1.85 (m, 4 H), 1,1-1.6 (m, 12 H), 0.95-1.1 (doft, J=7.1Hz, 6H); Karl Fischer, 2.63% H2O

Provenance & Evidence