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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1030063Generated: November 3, 2026

Hydrochloric Acid → HCID 178448923, compound

https://huagongshe.com/reaction/1030063

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantLithium hydroxide, monohydrateHCID 168937—
ReactantEthyl 2-methyl-4-{N-butyl-N-[{2'-(N-triphenylmethyltetrazol-5-yl)biphenyl-4-yl}methyl]amino}pyrimidine-5-carboxylateHCID 19791910—
SolventMethanolHCID 887—
SolventWaterHCID 962—
SolventTetrahydrofuranHCID 8028—
ProductHCID 178448923HCID 178448923—

Reaction Steps

The product of Example 1B (0.6 g, 0.842 mmole) was dissolved in 4 ml of methanol and 6 ml of THF. A solution of 180 mg of lithium hydroxide monohydrate in 1.5 ml of water was added and the mixture was refluxed for 5 hours. After cooling, 1 ml of concentrated hydrochloric acid was added and the mixture was stirred at room temperature for 2 hours. The resulting solution was concentrated under vacuum and 2 ml of water and 3 ml of ether was added to the residue. An oil which was insoluble in both layers formed. The oil was separated and crystallized from acetonitrile to provide 0.289 g of the desired product. M.p. 155°-158° C. 1H NMR (CD3OD) δ0.95 (t, 3H, J=7 Hz), 1.30 (m, 2H), 1.69 (m, 2H), 2.60 (s, 3H), 3.70 (m, 2H), 5.08 (m, 2H), 7.10 (d, 2H), 7.20 (s, 2H), 7.55 (d, 2H), 7.5-7.7 (m, 4H), 8.55 (s, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05104877
Source datasetuspto-grants-1992_04
ORD IDord-d5a8bbf4cb3941c09e620e8426241ba5
Source noteuspto-grants-1992_04