Diisopropylethylamine → (S)-tert-Butyl 4'-((5-(1-(4-bromophenyl)ethylcarbamoyl)-2,3-dimethyl-1H-indol-1-yl)methyl)biphenyl-2-carboxylate

Participants

Role	Name	HCID	Charge
Reactant	Diisopropylethylamine	HCID 81531	—
Reactant	(alphaS)-4-Bromo-alpha-methylbenzenemethanamine	HCID 852999	—
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	1-((2'-(tert-Butoxycarbonyl)biphenyl-4-yl)methyl)-2,3-dimethyl-1H-indole-5-carboxylic acid	HCID 71074664	—
Solvent	Dimethylformamide	HCID 6228	—
Product	(S)-tert-Butyl 4'-((5-(1-(4-bromophenyl)ethylcarbamoyl)-2,3-dimethyl-1H-indol-1-yl)methyl)biphenyl-2-carboxylate	HCID 71074881	—

Reaction Steps

To a mixture of 1-((2′-(tert-butoxycarbonyl)biphenyl-4-yl)methyl)-2,3-dimethyl-1H-indole-5-carboxylic acid (46 mg, 0.1 mmol) in DMF (1 mL) was added DIEA (26 mg, 0.2 mmol) and HATU (46 mg, 0.12 mmol). The mixture was stirred for 5 min, and then (S)-1-(4-bromophenyl)ethanamine (20 mg, 0.13 mmol) was added. The reaction mixture was stirred at rt for 30 min. The completion of the reaction was monitored by anal. HPLC. The solvent was removed in vacuo to obtain the crude which was purified by flash chromatography (AcOEt/Hex 10→100%) to obtain the title compound. ESI-MS (m/z): 637/639 [M+H]+.

Provenance & Evidence

DOI	10.6084/m9.figshare.5104873.v1
Patent number	US08957093B2
Source dataset	uspto-grants-2015_02
ORD ID	ord-b2fb586bb4244cdc9fda6bdd070d2a3a
Source note	uspto-grants-2015_02