Ammonia methanol → 4-Dimethylamino-9-(3-hydroxy-3-methyl-but-1-ynyl)-4,5-dihydro-6-oxa-3-thia-1-aza-benzo[e]azulene-2-carboxylic acid amide

HRID 575106Notes

Reaction equation

C[O:2][C:3]([C:5]1[S:6][C:7]2[CH:8]([N:25]([CH3:27])[CH3:26])[CH2:9][O:10][C:11]3[CH:18]=[CH:17][C:16]([C:19]#[C:20][C:21]([OH:24])([CH3:23])[CH3:22])=[CH:15][C:12]=3[C:13]=2[N:14]=1)=O.CO.[NH3:30]>>[CH3:27][N:25]([CH3:26])[CH:8]1[C:7]2[S:6][C:5]([C:3]([NH2:30])=[O:2])=[N:14][C:13]=2[C:12]2[CH:15]=[C:16]([C:19]#[C:20][C:21]([OH:24])([CH3:23])[CH3:22])[CH:17]=[CH:18][C:11]=2[O:10][CH2:9]1

Participants

Reactant 2

HCID 21705897Ammonia methanol

HCID 866931374-Dimethylamino-9-(3-hydroxy-3-methyl-but-1-ynyl)-4,5-dihydro-6-oxa-3-thia-1-aza-benzo[e]azulene-2-carboxylic acid methyl ester

Product 1

HCID 717147154-Dimethylamino-9-(3-hydroxy-3-methyl-but-1-ynyl)-4,5-dihydro-6-oxa-3-thia-1-aza-benzo[e]azulene-2-carboxylic acid amideYield 87%

Procedure

A solution of 4-Dimethylamino-9-(3-hydroxy-3-methyl-but-1-ynyl)-4,5-dihydro-6-oxa-3-thia-1-aza-benzo[e]azulene-2-carboxylic acid methyl ester (50 mg, 0.130 mmol), in methanol-ammonia (5 mL) was stirred at room temperature for 0.5 h. Then the mixture was filtered to afford compound 4-Dimethylamino-9-(3-hydroxy-3-methyl-but-1-ynyl)-4,5-dihydro-6-oxa-3-thia-1-aza-benzo[e]azulene-2-carboxylic acid amide (42 mg, 87%) as a white solid. LC-MS (ESI & APCI): 372.4 (M+1). 1H NMR (400 MHz, DMSO-d6): δ 8.54 (d, J=1.9 Hz, 1H), 8.43 (s, 1H), 7.88 (s, 1H), 7.30 (dd, H1=8.4 Hz, J2=1.9 Hz, 1H), 7.05 (d, J=8.3 Hz, 1H), 5.46 (s, 1H), 4.40 (m, 3H), 2.36 (s, 6H), 1.49 (s, 6H).

Workup

filtrationThen the mixture was filtered

Sources & evidence

ORD record: ord-3498d9eadd4c4a9596bb5cb3d98565d4
Source dataset: uspto-grants-2015_05
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09034866B2

Reaction notes

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