← Back to patent-cliff list
CAS 13794-72-4
6,7-dimethoxyquinazolin-4(3H)-one
Codes：ICOT-011
Application context (from source-drug indications)
非小细胞肺癌盐酸埃克替尼肺腺癌盐酸埃克替尼支气管肿瘤盐酸埃克替尼肺癌盐酸埃克替尼转移性乳腺癌盐酸埃克替尼银屑病盐酸埃克替尼
Source drugs (routes using this intermediate)
| Drug | Tier | Expiry |
|---|---|---|
| 盐酸埃克替尼Icotinib Hydrochloride | 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.
(ethane-1,2-diylbis(oxy))bis(ethane-2,1-diyl) bis(4-methylbenzenesulfonate)→2-amino-4,5-dimethoxybenzoic acid→6,7-dimethoxyquinazolin-4(3H)-one→4-chloro-6,7-dimethoxyquinazoline→3-bromoaniline→N-(3-bromophenyl)-6,7-dimethoxyquinazolin-4-amine→4-((3-bromophenyl)amino)quinazoline-6,7-diol hydrochloride→N-(3-bromophenyl)-7,8,10,11,13,14-hexahydro-[1,4,7,10]tetraoxacyclododecino[2,3-g]quinazolin-4-amine→ethynyltrimethylsilane
Intermediates available on this site
Side-by-side comparison of all listed offers on this CAS; price bands are list-price ranges, final price subject to RFQ confirmation.
| Supplier | Product | Price band | MOQ | Lead time | Qualifications |
|---|---|---|---|---|---|
| Unibest Nantong cGMP Site | 6,7-Dimethoxy-3,4-dihydroquinazoline -4-one Pharmaceutical Intermediates | 询价 | 询价 | 询价 | — |
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.