Unibest
← Back to patent-cliff list

CAS 116313-85-0

3,4-dihydroxy-5-nitrobenzaldehyde

Codes: ENTA-001

Application context (from source-drug indications)

Parkinson's diseaseEntacapone立位耐力不良EntacaponeTachycardiaEntacaponeObesityEntacapone

Source drugs (routes using this intermediate)

DrugTierExpiry
EntacaponeTier 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.

EntacaponeOriginator routesteps: 1total yield: 2.23 g
3,4-dihydroxy-5-nitrobenzaldehyde→2-cyano-N,N-diethylacetamide→1-(piperidin-1-yl)ethanone
EntacaponeOptimised routesteps: 3total yield: 9.45 g

Intermediates available on this site

No listed intermediates for this target yet — send an RFQ directly and it will enter our matching pool.

This is a CAS-level registry record: registrations across routes are merged. Supplier offers and buyer demands will be matched on this CAS as the primary key.