[CH2:1]([N:4]([CH2:18][CH2:19][CH3:20])[C:5]1[C:14]2[C:9](=[CH:10][CH:11]=[C:12]([C:15]([OH:17])=O)[CH:13]=2)[CH:8]=[CH:7][N:6]=1)[CH2:2][CH3:3].[NH2:21][C@@H:22]([CH2:36][C:37]1[CH:42]=[C:41]([F:43])[CH:40]=[C:39]([F:44])[CH:38]=1)[C@H:23]([OH:35])[CH2:24][NH:25][CH2:26][C:27]1[CH:32]=[CH:31][CH:30]=[C:29]([CH2:33][CH3:34])[CH:28]=1.C1C=CC2N(O)N=NC=2C=1.CCN(C(C)C)C(C)C.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F>C(Cl)Cl>[F:43][C:41]1[CH:42]=[C:37]([CH:38]=[C:39]([F:44])[CH:40]=1)[CH2:36][C@H:22]([NH:21][C:15]([C:12]1[CH:13]=[C:14]2[C:9]([CH:8]=[CH:7][N:6]=[C:5]2[N:4]([CH2:1][CH2:2][CH3:3])[CH2:18][CH2:19][CH3:20])=[CH:10][CH:11]=1)=[O:17])[C@H:23]([OH:35])[CH2:24][NH:25][CH2:26][C:27]1[CH:32]=[CH:31][CH:30]=[C:29]([CH2:33][CH3:34])[CH:28]=1To a stirred solution of 1-(dipropylamino)isoquinoline-7-carboxylic acid (103 mg, 0.38 mmol), (2R,3S)-3-Amino-4-(3,5-difluorophenyl)-1-[(3-ethylbenzyl)amino]butan-2-ol (154 mg, 0.38 mmol), HOBt (77 mg, 0.57 mmol), and DIPEA (0.2 mL, 1.1 mmol) in methylene chloride (4 mL) was added HATU (216 mg, 0.57 mmol). The reaction mixture was stirred overnight and then partitioned between methylene chloride and 1 N hydrochloric acid. The organic layer was washed with saturated sodium bicarbonate, saturated sodium chloride, dried (sodium sulfate), filtered, and concentrated under reduced pressure. Purification by flash column chromatography (silica, 9:1 chloroform/methanol) gave N-{(1S,2R)-1-(3,5-difluorobenzyl)-3-[(3-ethylbenzyl)amino]-2-hydroxypropyl}-1-(dipropylamino)isoquinoline-7-carboxamide (70 mg): mp: 142–151° C.; APCI MS m/z 589 [M+H]+
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