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CAS 5987-76-8
(2R,3R,4R,5R)-2-(acetoxymethyl)-5-(6-chloro-2-iodo-9H-purin-9-yl)tetrahydrofuran-3,4-diyl diacetate
Codes：REGA-004
Application context (from source-drug indications)
心血管造影剂瑞加诺生诊断剂瑞加诺生造影检查瑞加诺生冠状动脉病变瑞加诺生缺血性心脏病瑞加诺生肺炎瑞加诺生
Source drugs (routes using this intermediate)
| Drug | Tier | Expiry |
|---|---|---|
| 瑞加诺生Regadenoson Hydrate | 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.
2-amino-9-((2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-1,9-dihydro-6H-purin-6-one→(2R,3R,4R,5R)-2-(acetoxymethyl)-5-(2-amino-6-oxo-1,6-dihydro-9H-purin-9-yl)tetrahydrofuran-3,4-diyl diacetate→(2R,3R,4R,5R)-2-(acetoxymethyl)-5-(2-amino-6-chloro-9H-purin-9-yl)tetrahydrofuran-3,4-diyl diacetate→(2R,3R,4R,5R)-2-(acetoxymethyl)-5-(6-chloro-2-iodo-9H-purin-9-yl)tetrahydrofuran-3,4-diyl diacetate→(2R,3R,4S,5R)-2-(6-amino-2-iodo-9H-purin-9-yl)-5-(hydroxymethyl)tetrahydrofuran-3,4-diol→(2R,3R,4S,5R)-2-(6-amino-2-hydrazineyl-9H-purin-9-yl)-5-(hydroxymethyl)tetrahydrofuran-3,4-diol→ethyl 2-formyl-3-oxopropanoate→ethyl 1-(6-amino-9-((2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-9H-purin-2-yl)-1H-pyrazole-4-carboxylate
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