Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1429495Generated: October 31, 2026

Formaldehyde → HCID 90241654, compound

https://huagongshe.com/reaction/1429495

Reaction equation

Participants

RoleNameHCIDCharge
ReactantFormaldehydeHCID 712—
ReactantTriethylamineHCID 8471—
ReactantSodium cyanoborohydrideHCID 5003444—
ReactantHCID 90241762HCID 90241762—
SolventMethanolHCID 887—
ProductHCID 90241654HCID 9024165499%

Reaction Conditions

Temperature25 °C

Reaction Steps

To a solution of N-(3-(3,4-dihydroisoquinolin-2(1H)-yl)-2-hydroxypropyl)-2-((1-(piperidin-4-yl)-1H-indazol-5-yl)oxy)acetamide (50 mg, 0.108 mmol) in MeOH (5 mL) was added triethylamine (1 mL), HCHO (30%)(0.3 mL), and HOAC (0.4 mL). The mixture was stirred at 25° C. for 30 min, then NaBH3CN (0.4 mg) was added, and the mixture was stirred at 25° C. for an additional 1 h, concentrated under reduced pressure, and purified by prep-HPLC to give N-(3-(3,4-dihydroisoquinolin-2(1H)-yl)-2-hydroxypropyl)-2-((1-(1-methylpiperidin-4-yl)-1H-indazol-5-yl)oxy)acetamide (51.1 mg, yield 99%) as a colorless oil. 1H NMR (400 MHz, METHANOL-d4) δ ppm 8.50 (br. s., 2H), 8.00 (s, 1H), 7.70 (d, J=8.78 Hz, 1H), 7.28-7.19 (m, 3H), 7.17-7.11 (m, 2H), 6.94 (dd, J=8.85, 1.82 Hz, 1H), 5.12 (s, 2H), 4.82 (br. s., 2H), 4.24-4.11 (m, 3H), 3.47-3.35 (m, 3H), 3.32 (br. s., 1H), 3.13-2.94 (m, 4H), 2.87 (s, 3H), 2.32-2.07 (m, 4H). LCMS (m/z): 478.3 [M+H]+

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08940726B2
Source datasetuspto-grants-2015_01
ORD IDord-31e36de0bd964a1eb712795c5c7293d8
Source noteuspto-grants-2015_01