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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2187271Generated: October 30, 2026

Ammonia → 3beta-Hydroxy-4,4-dimethyl-5alpha-chola-8,14-dien-24-oic acid amide

https://huagongshe.com/reaction/2187271

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmoniaHCID 222—
ReactantEthanol hydrochlorideHCID 21887872—
Reactant3beta-Tert-butyidimethylsilyloxy-4,4-dimethyl-5alpha-chola-8,14-dien-24 oic acidHCID 69410795—
Product3beta-Hydroxy-4,4-dimethyl-5alpha-chola-8,14-dien-24-oic acid amideHCID 69411518—

Reaction Steps

3β-tert-Butyldimethylsilyloxy-4,4-dimethyl-5α-chola-8,14-dien-24 oic acid (1.0 g) is reacted with ammonia and hydrolysed with ethanol/HCl following the procedure outlined in example to give the title compound (147 mg). Melting point: 233-235° C. 1H-NMR (CDCl3, 400 MHz)): δ=5.36 (1H, s); 5.45-5.2 (2H, broad d); 3.25 (1H, m). MS: Calculated: 399.6. Found 399.3.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06407086B2
Source datasetuspto-grants-2002_06
ORD IDord-476e607a21814ae88af4ab30e3298f45
Source noteuspto-grants-2002_06