Triethylamine → N-(6-Chloro-3,4-dihydrospiro[chromene-2,1'-cyclobutan]-4-yl)-2-(5-methoxy-2-methyl-1H-indol-3-yl)acetamide

Participants

Role	Name	HCID	Charge
Reactant	Triethylamine	HCID 8471	—
Reactant	1-Hydroxybenzotriazole	HCID 75771	—
Reactant	5-Methoxy-2-methylindole-3-acetic acid	HCID 76151	—
Reactant	1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochloride	HCID 2723939	—
Reactant	2,2-dimethyl-3,4-dihydro-2H-1-benzopyran-4-amine	HCID 15338705	—
Solvent	Dichloromethane	HCID 6344	—
Product	N-(6-Chloro-3,4-dihydrospiro[chromene-2,1'-cyclobutan]-4-yl)-2-(5-methoxy-2-methyl-1H-indol-3-yl)acetamide	HCID 44132757	—

Reaction Steps

The title compound was prepared from Intermediate 2 (200 mg, 0.896 mmol) and (5-methoxy-2-methyl-1H-indol-3-yl)acetic acid (195 mg, 0.896 mmol) in presence of EDCI.HCl (256 mg, 1.345 mmol), HOBt (205 mg, 1.345 mmol) and triethylamine (374 μl, 3.003 mmol) in dichloromethane (10 ml) as described in Example 1 to give 35 mg of the product as a white solid; IR (KBr) 3383, 2934, 2343, 1648, 1475, 1217, 820 cm−1; 1H NMR (300 MHz, CDCl3) δ 1.50-1.65 (m, 5H), 1.83-1.95 (m, 3H), 2.40 (s, 3H), 3.73 (s, 3H), 3.82 (s, 2H), 5.23 (q, J=9.6 Hz, 1H), 5.76 (d, J=8.7 Hz, 1H), 6.62 (d, J=8.4 Hz, 1H), 6.77 (dd, J=2.4, 6.6 Hz, 1H), 6.82-6.89 (m, 2H), 6.98 (dd, J=2.1, 6.3 Hz, 1H), 7.14 (d, J=8.4 Hz, 1H), 7.84 (s, 1H); ESI-MS (m/z) 423.58 (M−H)−.

Provenance & Evidence

DOI	10.6084/m9.figshare.5104873.v1
Patent number	US08487121B2
Source dataset	uspto-grants-2013_07
ORD ID	ord-d5baacfe4c6e4c708efa07ca1ad92164
Source note	uspto-grants-2013_07