Tetrahydrofuran → 2-(4-{2-[2-(2,2,2-Trifluoro-ethyl)-2H-[1,2,4]triazol-3-yl]-4,5-dihydro-6-oxa-3-thia-1-aza-benzo[e]azulen-8-yl}-pyrazol-1-yl)-acetamide

Participants

Role	Name	HCID	Charge
Reactant	Tetrahydrofuran	HCID 8028	—
Reactant	Ammonium Chloride	HCID 25517	—
Reactant	Diisopropylethylamine	HCID 81531	—
Reactant	Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)	HCID 9886157	—
Reactant	(4-{2-[2-(2,2,2-Trifluoro-ethyl)-2H-[1,2,4]triazol-3-yl]-4,5-dihydro-6-oxa-3-thia-1-aza-benzo[e]azulen-8-yl}-pyrazol-1-yl)-acetic acid	HCID 67061748	—
Product	2-(4-{2-[2-(2,2,2-Trifluoro-ethyl)-2H-[1,2,4]triazol-3-yl]-4,5-dihydro-6-oxa-3-thia-1-aza-benzo[e]azulen-8-yl}-pyrazol-1-yl)-acetamide	HCID 67061727	21%

Reaction Steps

To a round bottom flask containing (4-{2-[2-(2,2,2-Trifluoro-ethyl)-2H-[1,2,4]triazol-3-yl]-4,5-dihydro-6-oxa-3-thia-1-aza-benzo[e]azulen-8-yl}-pyrazol-1-yl)-acetic acid (0.150 g, 0.000315 mol) in tetrahydrofuran (2.0 mL, 0.025 mol) was added N,N-diisopropylethylamine (0.33 mL, 0.0019 mol), ammonium chloride (0.10 g, 0.0019 mol) and N,N,N′,N′-tetramethyl-O-(7-azabenzotriazol-1-yl)uronium hexafluorophosphate (HATU) (0.24 g, 0.00063 mol). The reaction was stirred at room temperature overnight. The mixture was partitioned between saturated sodium bicarbonate and ethyl acetate. The organic phases were combined, dried with MgSO4, and concentrated. The crude was purified by reverse-phase HPLC to yield 240 (31.5 mg) as a colorless solid. MS(ESI+) 476.1.

Provenance & Evidence

DOI	10.6084/m9.figshare.5104873.v1
Patent number	US08952043B2
Source dataset	uspto-grants-2015_02
ORD ID	ord-aaaaf18f3c6647e0bd9f92445ac20ae7
Source note	uspto-grants-2015_02