Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2066835Generated: October 31, 2026

Water → 4-(5-Cyano-7-isopropyl-1,3-benzoxazol-2-yl)-N-({(3R)-1-[5-(2-isopropoxy-5-methylphenyl)pyridin-2-yl]pyrrolidin-3-yl}methyl)benzamide

https://huagongshe.com/reaction/2066835

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantSodium CarbonateHCID 10340—
Reactant2-Isopropoxy-5-methylphenylboronic acidHCID 3547422—
ReactantN-{[(3R)-1-(5-Bromopyridin-2-yl)pyrrolidin-3-yl]methyl}-4-(5-cyano-7-isopropyl-1,3-benzoxazol-2-yl)benzamideHCID 25152255—
CatalystHCID 178418397HCID 178418397—
SolventEthanolHCID 702—
SolventTolueneHCID 1140—
Product4-(5-Cyano-7-isopropyl-1,3-benzoxazol-2-yl)-N-({(3R)-1-[5-(2-isopropoxy-5-methylphenyl)pyridin-2-yl]pyrrolidin-3-yl}methyl)benzamideHCID 2515225785.4%

Reaction Conditions

Temperature150 °C

Reaction Steps

Sodium carbonate (100 μl, 2M aqueous), (2-isopropoxy-5-methylphenyl)boronic acid (39 mg), and N-{[(3R)-1-(5-bromopyridin-2-yl)pyrrolidin-3-yl]methyl}-4-(5-cyano-7-isopropyl-1,3-benzoxazol-2-yl)benzamide (EXAMPLE 84, 27 mg) were dissolved in toluene (2.1 ml), water (0.6 ml) and ethanol (0.3 ml). To this solution was added tetrakis(triphenylphosphine)palladium(0) (9 mg). The mixture was heated to 150° C. for 25 min via microwave, and then cooled and concentrated. The residue was dissolved in dichloromethane and purified via flash chromatography on a Biotage Horizon, 40 M column, eluting with 1 column volume of 100% ethyl acetate in hexanes, followed by a gradient of 0 to 100% ethyl acetate in hexanes over 10 column volumes, followed by 4 column volumes of 100% ethyl acetate to provide the title compound (26 mg, 84%). Mass spectrum (ESI) 614.6 (M+2). 1H NMR (500 MHz, CDCl3): δ 8.37 (d, J=2.3 Hz, 1H), 8.34 (d, J=8.2 Hz, 2H), 7.95 (d, J=8.2 Hz, 2H), 7.94 (s, 1H), 7.72 (dd, J=8.6 Hz, 2.3 Hz, 1H), 7.52 (s, 1H), 7.09 (s, 1H), 7.04 (dd, J=8.4 Hz, 2.1 Hz, 1H), 6.87 (d, J=8.2 Hz, 1H), 6.43 (d, J=8.7 Hz, 2H), 4.40 (sept, J=6.1 Hz, 1H), 3.79 (m, 2H), 3.73 (m, 1H), 3.51 (m, 3H), 3.41 (m, 1H), 2.76 (sept, J=6.9 Hz, 1H), 2.32 (s, 3H), 2.27 (m, 1H), 1.91, (m, 1H), 1.46 (d, J=6.8 Hz, 6H), 1.24 (d, J=5.9 Hz, 6H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08293721B2
Source datasetuspto-grants-2012_10
ORD IDord-ae60a71547e341719670876bb8c2e721
Source noteuspto-grants-2012_10