CAS 623-00-7

4-bromobenzonitrile4-Bromobenzonitrile

Codes: RILP-019, Bromfenac Sodium-016

Application context (from source-drug indications)

HIV infectionRilpivirine HydrochlorideHepatic function declineRilpivirine HydrochlorideAcquired immunodeficiency syndromeRilpivirine HydrochlorideContraceptive useRilpivirine HydrochlorideInflammatory diseaseBromfenac SodiumPostoperative painBromfenac Sodium眼睛发炎Bromfenac Sodium眼睛疼痛Bromfenac SodiumDry eye syndromeBromfenac Sodium黄斑水肿Bromfenac Sodium

Source drugs (routes using this intermediate)

Drug	Tier	Expiry
Rilpivirine Hydrochloride	Tier B — Position early	-
Bromfenac Sodium	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.

Rilpivirine HydrochlorideOptimised routesteps: 5total yield: 26.6 g

4-bromo-2,6-dimethylaniline→4-bromopyrimidin-2-amine→tert-butyl (4-bromopyrimidin-2-yl)carbamate→tert-butyl (4-((4-bromo-2-methylphenyl)amino)pyrimidin-2-yl)carbamate→N4-(4-bromo-2,6-dimethylphenyl)pyrimidine-2,4-diamine→(E)-3-(4-((2-aminopyrimidin-4-yl)amino)-3,5-dimethylphenyl)acrylonitrile→4-bromobenzonitrile

Rilpivirine HydrochlorideOptimised routesteps: 6total yield: 26.6 g

4-bromopyrimidin-2-amine→(E)-3-(4-((2-aminopyrimidin-4-yl)amino)-3,5-dimethylphenyl)acrylonitrile→4-bromobenzonitrile→methyl 4-amino-3,5-dimethylbenzoate→methyl 4-((2-((tert-butoxycarbonyl)amino)pyrimidin-4-yl)amino)-3,5-dimethylbenzoate→methyl 4-((2-aminopyrimidin-4-yl)amino)-3,5-dimethylbenzoate→(4-((2-aminopyrimidin-4-yl)amino)-3,5-dimethylphenyl)methanol→4-((2-aminopyrimidin-4-yl)amino)-3,5-dimethylbenzaldehyde→(cyanomethyl)triphenylphosphonium chloride

Bromfenac SodiumProcess routesteps: 7total yield: 493g(Bromfenac Sodium (API))

1H-Indole→3-Bromoindole→1,3-Dihydroindolone→4-Bromobenzonitrile→7-(4-Bromobenzoyl)-1,3-dihydro-2-indolone→[2-Amino-3-(4-bromobenzoyl)phenyl]acetic acid→2-Amino-3-benzoylbenzeneacetic acid sodium salt monohydrate→(2-Amino-3-benzoylphenyl)acetic acid

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