Triethylamine → 3-(2-(2-(benzo[b]thiophen-3-yl)-9-isopropyl-9H-purin-6-ylamino)ethyl)-1H-indol-5-yl 6-(tert-butoxycarbonylamino)hexanoate

Participants

Role	Name	HCID	Charge
Reactant	Triethylamine	HCID 8471	—
Reactant	6-((tert-Butoxycarbonyl)amino)hexanoic acid	HCID 637602	—
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	3-(2-(2-(benzo[b]thiophen-3-yl)-9-isopropyl-9H-purin-6-ylamino)ethyl)-1H-indol-5-ol	HCID 59408923	—
Solvent	Dimethylformamide	HCID 6228	—
Product	3-(2-(2-(benzo[b]thiophen-3-yl)-9-isopropyl-9H-purin-6-ylamino)ethyl)-1H-indol-5-yl 6-(tert-butoxycarbonylamino)hexanoate	HCID 59408911	—

Reaction Steps

To a solution of 3-(2-(2-(benzo[b]thiophen-3-yl)-9-isopropyl-9H-purin-6-ylamino)ethyl)-1H-indol-5-ol (55.5 mg, 0.119 mmol) and 6-(tert-butoxycarbonylamino)hexanoic acid (30 mg, 0.113 mmol) in DMF (3 ml) was added Et3N (24 mg, 0.237 mmol) and HATU (90 mg, 0.237 mmol). The mixture was stirred at rt for 16 hr, and then was concentrated. Water was added and the reaction mixture was extracted with ethyl acetate. The organic fractions were combined, dried over sodium sulfate, and concentrated. The residue was purified by silica gel chromatography (0 to 5% MeOH in DCM eluant) to afford the title compound as an off-white solid.

Provenance & Evidence

DOI	10.6084/m9.figshare.5104873.v1
Patent number	US08927281B2
Source dataset	uspto-grants-2015_01
ORD ID	ord-bb511b42ee544e5383c1f3c867cfd5db
Source note	uspto-grants-2015_01