Hydrochloric Acid → HCID 86695115, compound

HRID 1503941Notes

Reaction equation

[C:1]([CH2:4][O:5][CH2:6][C@H:7]1[CH2:18][CH2:17][C:16]2[S:15][C:14]3[N:13]=[CH:12][N:11]=[C:10]([O:19][CH:20]4[CH2:25][CH2:24][CH:23]([N:26](C)[C:27](=O)OC(C)(C)C)[CH2:22][CH2:21]4)[C:9]=3[C:8]1=2)(=[O:3])[NH2:2].[ClH:35]>ClCCl>[ClH:35].[CH3:27][NH:26][CH:23]1[CH2:24][CH2:25][CH:20]([O:19][C:10]2[C:9]3[C:8]4[C@@H:7]([CH2:6][O:5][CH2:4][C:1]([NH2:2])=[O:3])[CH2:18][CH2:17][C:16]=4[S:15][C:14]=3[N:13]=[CH:12][N:11]=2)[CH2:21][CH2:22]1

Participants

Conditions

Temperature: 0 °C

Procedure

A solution of tert-butyl N-(4-[[(3S)-3-[(carbamoylmethoxy)methyl]-7-thia-9,11-diazatricyclo[6.4.0.0[2,6]]dodeca-1(8),2(6),9,11-tetraen-12-yl]oxy]cyclohexyl)-N-methylcarbamate (115 mg, 0.23 mmol, 1.00 equiv) in dichloromethane (4 mL) cooled down to 0° C. was added hydrochloric acid (12 M, 0.5 mL). The resulting solution was stirred for 1 h at 0° C. and concentrated in vacuo to give 2-[[(3S)-12-[[4-(methylamino)cyclohexyl]oxy]-7-thia-9,11-diazatricyclo[6.4.0.0[2,6]]dodeca-1(8),2(6),9,11-tetraen-3-yl]methoxy]acetamide hydrochloride (100 mg, crude) as a light yellow solid. The crude hydrochloride (100 mg) dissolved in methanol (3 mL) was added HCHO (37%, 0.5 mL) and stirred for 1 h at 0° C. Then NaBH3CN (44.35 mg, 0.71 mmol) was added and the resulting solution was stirred for 2 h at room temperature. The reaction mixture was diluted with water, extracted with 3×20 mL of chloroform/i-PrOH. The combined organic layers were concentrated under vacuum. The crude product (80 mg) was purified by preparative HPLC under the following conditions (SHIMADZU): column: SunFire Prep C18, 19*150 mm 5 um; mobile phase: water with 0.05% NH4HCO3 and CH3CN (6.0% CH3CN up to 53.0% in 13 min); flow rate: 20 mL/min; UV detection at 254/220 nm. The product-containing fractions were collected and partially evaporated to remove water and CH3CN under reduced pressure. The residue was lyophilized overnight to give the desired 2-[[(3S)-12-[[4-(dimethylamino)cyclohexyl]oxy]-7-thia-9,11-diazatricyclo[6.4.0.0[2,6]]dodeca-1(8),2(6),9,11-tetraen-3-yl]methoxy]acetamide (35 mg) as a white solid. MS (ES): m/z 405 [M+H]+. 1H NMR (300 MHz, CD3OD): δ 8.44 (1H, s), 5.28-5.21 (1H, m), 3.94-3.88 (3H, m), 3.61-3.56 (2H, m), 3.14-2.97 (2H, m), 2.67-2.54 (2H, m), 2.42-2.31 (10H, m), 2.02 (2H, d), 1.62-1.43 (4H, m).

Workup

concentrationconcentrated in vacuo

Sources & evidence

ORD record: ord-93db2fd621104770a1a26fde3752678a
Source dataset: uspto-grants-2015_12
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09212190B2

Reaction notes

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