Hydrochloric Acid → N-[3-chloro-4-(pyridin-2-ylmethoxy)phenyl]-5,8-dihydro-6H-spiro[1-benzothieno[2,3-d]pyrimidine-7,2'-[1,3]dioxolan]-4-amine hydrochloride

温度

80 °C

To ethanol (60 mL) were sequentially added 4-chloro-5,8-dihydro-6H-spiro[1-benzothieno[2,3-d]pyrimidine-7,2′-[1,3]dioxolane] (5.70 g, 20.2 mmol), 3-Chloro-4-(pyridin-2-ylmethoxyl)-phenylamine (4.78 g, 20.37 mmol), and HCl in ethanol (1N, 4 mL). The suspension was stirred with heating to 80° C., upon which time the contents turn brown and homogeneous. After 12 h, the dark orange-yellow heterogeneous mixture was removed from heating, and allowed to cool to rt. The contents were concentrated down to about 30 mL in volume and the precipitate was collected by filtration as a light-brown solid (10.1 g, 92%). 1H-NMR (DMSO-d6) δ 8.71 (d, 1H), 8.40 (s, 1H), 8.33 (s, 1H), 8.10 (td, 1H), 7.80 (d, 1H), 7.75 (d, 1H), 7.56 (m, 2H), 7.25 (d, 1H), 5.48 (br, 1H), 5.38 (s, 2H), 3.99 (s, 4H), 3.28 (t, 2H), 3.03 (s, 2H), 1.97 (t, 2H); LCMS RT=2.73 min; [M+H]+=481.1.

1. customthe dark orange-yellow heterogeneous mixture was removed
2. temperaturefrom heating
3. temperatureto cool to rt
4. concentrationThe contents were concentrated down to about 30 mL in volume
5. filtrationthe precipitate was collected by filtration as a light-brown solid (10.1 g, 92%)

ORDレコード

ord-40f1b435b6134c4a9af675c46f21d483

出典データセット

uspto-grants-2012_06

DOI

10.6084/m9.figshare.5104873.v1

特許番号

US08207172B2