Hydrochloric Acid → HCID 178428932, compound
Reaction equation
[ClH:1].[CH3:2][C:3]1[N:8]=[C:7]2[CH2:9][CH2:10][O:11][CH2:12][C:6]2=[C:5]([O:13][CH2:14][C:15]2[CH:20]=[CH:19][C:18]([C:21]3[CH:26]=[CH:25][CH:24]=[CH:23][C:22]=3[C:27]3[N:28]=[N:29][N:30](C(C4C=CC=CC=4)(C4C=CC=CC=4)C4C=CC=CC=4)[N:31]=3)=[CH:17][CH:16]=2)[CH:4]=1>C(O)C.CO>[ClH:1].[CH3:2][C:3]1[N:8]=[C:7]2[CH2:9][CH2:10][O:11][CH2:12][C:6]2=[C:5]([O:13][CH2:14][C:15]2[CH:16]=[CH:17][C:18]([C:21]3[CH:26]=[CH:25][CH:24]=[CH:23][C:22]=3[C:27]3[NH:28][N:29]=[N:30][N:31]=3)=[CH:19][CH:20]=2)[CH:4]=1Participants
Reactant 2
Product 1
Reagents, catalysts & solvents 2
Procedure
Concentrated hydrochloric acid (0.75 ml) was added to a solution of 7,8-dihydro-2-methyl-4-[(2'-(2-triphenylmethyl-2H-tetrazol-5-yl)biphenyl-4-yl)methoxy]-5H-pyrano[4,3-b]pyridine (A1) (0.94 g) in ethanol (6 ml) and methanol (3 ml). The solution was left to stand for 18 hours, and the precipitated solid collected by filtration, and washed with ether to give 7,8-dihydro-2-methyl-4-[(2'-(1H-tetrazol-5-yl)biphenyl-4-yl)methoxy]-5H-pyrano[4,3-b]-pyridine hydrochloride (0.47 g), as a white solid, m.p. 173°-175° C.; NMR (d6 -DMSO): 2.7(s,3H), 3.0(t,2H), 3.95(t,2H), 4.7(s,2H), 5.4(s,2H), 7.2(d,2H), 7.4(d,2H), 7.5-7.75 (complex m,5H); 13C NMR (d6 -DMSO): 71.0 (benzylic CH2); mass spectrum (negative fast atom bombardment (-ve FAB), DMSO/Glycerol (GLY)): 398 (M-H)- ; microanalysis, found: C,62.8; H,4.9; N,15.9; H2O, 0.9%; C23H21N5O2.HCl.0.25H2O requires C,62.7; H,5.1; N,15.9; H2O 1.0%.
Workup
- waitThe solution was left
- filtrationthe precipitated solid collected by filtration
- washwashed with ether
Sources & evidence
- ORD record
- ord-29ece6d6c4ad449fa5db20287312dabf
- Source dataset
- uspto-grants-1993_03
- Patent number
- US05198434
Reaction notes
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