3-Pentyl-8-azabicyclo[3.2.1]octane → (R)-4-[2-Methyl-3-(3-pentyl-8-aza-bicyclo[3.2.1]oct-8-yl)propyl]-4H-benzo[1,4]thiazin-3-one

HRID 969359Notes

Reaction equation

I[CH2:2][C@@H:3]([CH3:16])[CH2:4][N:5]1[C:10]2[CH:11]=[CH:12][CH:13]=[CH:14][C:9]=2[S:8][CH2:7][C:6]1=[O:15].[CH2:17]([CH:22]1[CH2:28][CH:27]2[NH:29][CH:24]([CH2:25][CH2:26]2)[CH2:23]1)[CH2:18][CH2:19][CH2:20][CH3:21]>CC#N>[CH3:16][C@H:3]([CH2:2][N:29]1[CH:24]2[CH2:25][CH2:26][CH:27]1[CH2:28][CH:22]([CH2:17][CH2:18][CH2:19][CH2:20][CH3:21])[CH2:23]2)[CH2:4][N:5]1[C:10]2[CH:11]=[CH:12][CH:13]=[CH:14][C:9]=2[S:8][CH2:7][C:6]1=[O:15]

Participants

Conditions

Temperature: 40 °C

Procedure

The compound (S)-4-(3-Iodo-2-methylpropyl]-4H-benzo[1,4]thiazin-3-one (108LM37-34) (0.080 g, 0.231 mmol) and 3-pentyl-8-azabicyclo[3.2.1]octane (104KS32-2) (0.050 g, 0.276 mmol) in MeCN (½ mL) were reacted according to GP10 shaking at 40° C. for 5 days. Purified by cation exchange CC and flash CC (SiO2; MeOH/DCM 1:50+1% Et3N) to give the title compound (108LM52-49) (0.045 g, 49%). 1H NMR (CDCl3) δ 7.36 (d, J=7.6 Hz, 1H), 7.32 (d, J=7.7 Hz, 1H), 7.22 (t, J=7.6 Hz, 1H), 7.00 (t, J=7.6 Hz, 1H), 4.16 (d, J=7.3 Hz, CH2), 3.34 (s, CH2), 3.10-2.95 (m, 2H), 2.25-2.17 (m, 1H), 2.15-2.03 (m, 3H), 1.94-1.75 (m, 3H), 1.70-1.60 (m, 1H), 1.60-1.50 (m, 2H), 1.40-1.15 (m, 10H), 0.90-0.80 (m, 6H); 13C NMR (CDCl3) δ 166.1, 139.2, 128.7, 127.1, 124.7, 123.4, 119.1, 60.5, 59.0, 57.4, 47.5, 38.4, 36.4, 32.2, 32.1, 31.4, 29.9, 28.5, 28.4, 27.9, 27.2, 22.9, 16.7, 14.3; HPLC-MS (ammonium acetate) [M+H]+=401.3.

Workup

customPurified by cation exchange CC and flash CC (SiO2; MeOH/DCM 1:50+1% Et3N)

Sources & evidence

ORD record: ord-01d571dad6fb4f1b8d3f08649d02798d
Source dataset: uspto-grants-2007_12
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07307075B2

Reaction notes

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