CAS 108-01-0

N,N-DimethylaminoethanolN,N-Dimethyl-2-hydroxyethylamine2-(dimethylamino)ethanol

Codes: Tetracaine-003, BPI-7711-002

Application context (from source-drug indications)

AnaesthesiaOxymetazoline Hydrochloride/Tetracaine HydrochloridePeriapical periodontitisOxymetazoline Hydrochloride/Tetracaine HydrochlorideDental cariesOxymetazoline Hydrochloride/Tetracaine HydrochlorideAnaesthesiaTetracaine HydrochlorideRetinitis pigmentosaTetracaine HydrochloridePainTetracaine HydrochlorideNon-small cell lung cancerRezivertinib Mesylate

Source drugs (routes using this intermediate)

Drug	Tier	Expiry
Oxymetazoline Hydrochloride/Tetracaine Hydrochloride	Tier C — Watch / trade	-
Tetracaine Hydrochloride	Tier C — Watch / trade	-
Rezivertinib Mesylate	Tier C — Watch / trade	-

Position in synthesis routes (up/downstream chain)

Ordered by route registration; left → right is the synthesis direction. The highlighted node is the current CAS; others link to their own profiles.

Oxymetazoline Hydrochloride/Tetracaine HydrochlorideOptimised routesteps: 6total yield: /

4-Nitrobenzoic acid→4-Nitrobenzoyl chloride→N,N-Dimethylaminoethanol→2-(Dimethylamino)ethyl 4-nitrobenzoate hydrogen chloride→2-(Dimethylamino)ethyl 4-nitrobenzoate→2-(Dimethylamino)ethyl 4-aminobenzoate hydrogen chloride→4-Aminobenzoic acid 2-(dimethylamino)ethyl ester→Butanal→1-Bromobutane→4-(Butylamino)benzoic acid 2-(dimethylamino)ethyl ester

Oxymetazoline Hydrochloride/Tetracaine HydrochlorideOptimised routesteps: 10total yield: /

4-Aminobenzoic acid sodium salt→4-(Butylamino)benzoic acid→p-Chlorobenzoic acid→4-Bromobenzoic acid→4-Iodobenzoic acid→Butylamine→4-(Butylamino)benzoic acid ethyl ester→2-(Dimethylamino)ethanol hydrochloride→2-Chloroethanol→4-(Butylamino)benzoic acid 2-chloroethyl ester→N-Methylmethanamine→n-Butyl bromide→N,N-Dimethylaminoethanol→4-Aminobenzoic acid 2-(dimethylamino)ethyl ester→4-(Butylamino)benzoic acid 2-(dimethylamino)ethyl ester

Oxymetazoline Hydrochloride/Tetracaine HydrochlorideOptimised routesteps: 3total yield: 93.5g(Tetracaine)

4-Aminobenzoic acid→Butanal→N,N-Dimethyl-2-hydroxyethylamine

Oxymetazoline Hydrochloride/Tetracaine HydrochlorideOptimised routesteps: 5total yield: /

4-Bromobenzoyl chloride→2-(Dimethylamino)ethyl 4-bromobenzoate→Ethyl 4-aminobenzoate→n-Butyl bromide→N,N-Dimethylaminoethanol→Monobutylamine→4-(Butylamino)benzoic acid 2-(dimethylamino)ethyl ester→4-(Butylamino)benzoic acid ethyl ester→4-Aminobenzoic acid

Oxymetazoline Hydrochloride/Tetracaine HydrochlorideOptimised routesteps: 3total yield: /

Ethyl 4-nitrobenzoate→4-Aminobenzoic acid ethyl ester→Butyraldehyde→4-(Butylamino)benzoic acid ethyl ester→N,N-Dimethyl-2-hydroxyethylamine→4-(Butylamino)benzoic acid 2-(dimethylamino)ethyl ester

Tetracaine HydrochlorideOptimised routesteps: 6total yield: /

Tetracaine HydrochlorideOptimised routesteps: 10total yield: /

Tetracaine HydrochlorideOptimised routesteps: 3total yield: 93.5g(Tetracaine)

4-Aminobenzoic acid→Butanal→N,N-Dimethyl-2-hydroxyethylamine

Tetracaine HydrochlorideOptimised routesteps: 5total yield: /

Tetracaine HydrochlorideOptimised routesteps: 3total yield: /

Rezivertinib MesylateOriginator routesteps: 3total yield: 0.583 g (BPI-7711)

BPI-7711→N-(4-fluoro-2-methoxy-5-nitrophenyl)-4-(1-methyl-1H-indol-3-yl)pyrimidin-2-amine→2-(dimethylamino)ethanol→N-(4-(2-(dimethylamino)ethoxy)-2-methoxy-5-nitrophenyl)-4-(1-methyl-1H-indol-3-yl)pyrimidin-2-amine→4-(2-(dimethylamino)ethoxy)-6-methoxy-N1-(4-(1-methyl-1H-indol-3-yl)pyrimidin-2-yl)benzene-1,3-diamine→3-chloropropanoyl chloride

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