Triethylamine → N-(6-Chloro-3,4-dihydrospiro[chromene-2,1'-cyclobutan]-4-yl)-2-(1,2,3,4-tetrahydro naphthalen-1-yl)acetamide

Participants

Role	Name	HCID	Charge
Reactant	Triethylamine	HCID 8471	—
Reactant	1-Hydroxybenzotriazole	HCID 75771	—
Reactant	2-(5,6,7,8-Tetrahydronaphthalen-1-yl)acetic acid	HCID 231978	—
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-(1,2,3,4-tetrahydro naphthalen-1-yl)acetamide	HCID 44132598	—

Reaction Steps

The title compound was prepared from Intermediate 2 (212 mg, 0.951 mmol) and 5,6,7,8-tetrahydronaphthalen-1-ylacetic acid (150 mg, 0.791 mmol) in presence of EDCI.HCl (227 mg, 1.663 mmol), HOBt (121 mg, 0.791 mmol) and triethylamine (330 μl, 2.371 mmol) in dichloromethane (10 ml) as described in Example 1 to give 154 mg of the product as a white solid; IR (KBr) 3278, 2935, 1637, 1474, 1263, 818 cm−1; 1H NMR (300 MHz, CDCl3) δ 1.70-1.87 (m, 6H), 2.03-2.18 (m, 3H), 2.20-2.46 (m, 3H), 2.60-2.70 (m, 1H), 2.77 (br s, 2H), 3.47 (br s, 2H), 5.27 (q, J=9.3 Hz, 1H), 5.45 (d, J=7.8 Hz, 1H), 6.70 (d, J=8.7 Hz, 1H), 7.05-7.18 (m, 6H); ESI-MS (m/z) 394.76 (M−H)−.

Provenance & Evidence

DOI	10.6084/m9.figshare.5104873.v1
Patent number	US08487121B2
Source dataset	uspto-grants-2013_07
ORD ID	ord-56d7ff260f8240d5a3e29572de0b2d45
Source note	uspto-grants-2013_07