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CAS 97-72-3
2-Methylpropanoyl 2-methylpropanoate2-Methylpropionic anhydrideIsobutyric anhydrideDimethylacetic anhydridealpha-Methylpropionic anhydrideisobutyric anhydride
Codes: (VIb)1140100-1-a, (IV)1140100-2-a, (IIa)1140100-3-a, Molnupiravir-003, CICL-002, KL-1333-002
Application context (from source-drug indications)
COVID-19Deuremidevir hydrobromide呼吸道合胞体病毒感染Deuremidevir hydrobromide亨尼波病毒属感染Deuremidevir hydrobromideCOVID-19Molnupiravir呼吸道合胞体病毒感染MolnupiravirInfluenza virus infectionMolnupiravirRenal impairmentMolnupiravirHepatic function declineMolnupiravirAsthmaCiclesonidePerennial allergic rhinitisCiclesonideSeasonal allergic rhinitisCiclesonideAllergic rhinitisCiclesonide支气管肺发育不良CiclesonideCOVID-19Ciclesonide
Source drugs (routes using this intermediate)
| Drug | Tier | Expiry |
|---|---|---|
| Deuremidevir hydrobromide | Tier C — Watch / trade | - |
| Molnupiravir | Tier B — Position early | - |
| Ciclesonide | Tier C — Watch / trade | - |
| Napazimone | 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.
(2R,3R,4R,5R)-2-(4-Aminopyrrolo[2,1-f][1,2,4]triazin-7-yl)-3,4-bis(benzyloxy)-5-((benzyloxy)methyl)tetrahydrofuran-2-carbonitrile→(2R,3R,4R,5R)-2-(4-Amino-5-iodopyrrolo[2,1-f][1,2,4]triazin-7-yl)-3,4-bis(benzyloxy)-5-[(benzyloxy)methyl]oxolane-2-carbonitrile→(2R,3R,4R,5R)-2-[4-Amino-5-deuteropyrrolo[2,1-f][1,2,4]triazin-7-yl]-3,4-bis(benzyloxy)-5-[(benzyloxy)methyl]oxolane-2-carbonitrile→(2R,3R,4S,5R)-2-(4-Amino-5-deuteriopyrrolo[2,1-f][1,2,4]triazin-7-yl)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-carbonitrile→N'-[7-[(2R,3R,4S,5R)-2-Cyano-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-5-deuteropyrrolo[2,1-f][1,2,4]triazin-4-yl]-N,N-dimethylmethanimidamide→2-Methylpropanoyl chloride→2-Methylpropanoyl 2-methylpropanoate→(2R,3R,4R,5R)-2-Cyano-2-[4-[(Z)-[(dimethylamino)methylidene]amino]-5-deuteropyrrolo[2,1-f][1,2,4]triazin-7-yl]-5-[[(2-methylpropanoyl)oxy]methyl]oxolane-3,4-diyl bis(2-methylpropanoate)→(2R,3R,4R,5R)-2-[4-Amino-5-deuteropyrrolo[2,1-f][1,2,4]triazin-7-yl]-2-cyano-5-[[(2-methylpropanoyl)oxy]methyl]oxolane-3,4-diyl bis(2-methylpropanoate)
(2R,3R,4R,5R)-2-(4-Amino-5-bromopyrrolo[2,1-f][1,2,4]triazin-7-yl)-3,4-bis(benzyloxy)-5-[(benzyloxy)methyl]oxolane-2-carbonitrile→(2R,3R,4R,5R)-2-(4-Amino-5-iodopyrrolo[2,1-f][1,2,4]triazin-7-yl)-3,4-bis(benzyloxy)-5-[(benzyloxy)methyl]oxolane-2-carbonitrile→(2R,3R,4R,5R)-2-(4-Amino-5-chloropyrrolo[2,1-f][1,2,4]triazin-7-yl)-3,4-bis(benzyloxy)-5-[(benzyloxy)methyl]oxolane-2-carbonitrile→(2R,3R,4S,5R)-2-(4-Amino-5-bromopyrrolo[2,1-f][1,2,4]triazin-7-yl)-3,4-dihydroxy-5-(hydroxymethyl)oxolane-2-carbonitrile→(2R,3R,4S,5R)-2-(4-Amino-5-iodopyrrolo[2,1-f][1,2,4]triazin-7-yl)-3,4-dihydroxy-5-(hydroxymethyl)oxolane-2-carbonitrile→(2R,3R,4S,5R)-2-(4-Amino-5-chloropyrrolo[2,1-f][1,2,4]triazin-7-yl)-3,4-dihydroxy-5-(hydroxymethyl)oxolane-2-carbonitrile→(2R,3R,4S,5R)-2-(4-Amino-5-deuteriopyrrolo[2,1-f][1,2,4]triazin-7-yl)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-carbonitrile→2-Methylpropanoyl 2-methylpropanoate→(2R,3R,4R,5R)-2-[4-Amino-5-deuteropyrrolo[2,1-f][1,2,4]triazin-7-yl]-2-cyano-5-[[(2-methylpropanoyl)oxy]methyl]oxolane-3,4-diyl bis(2-methylpropanoate)→(2R,3R,4R,5R)-2-(4-Amino-5-bromopyrrolo[2,1-f][1,2,4]triazin-7-yl)-2-cyano-5-[[(2-methylpropanoyl)oxy]methyl]oxolane-3,4-diyl bis(2-methylpropanoate)→(2R,3R,4R,5R)-2-(4-Amino-5-iodopyrrolo[2,1-f][1,2,4]triazin-7-yl)-2-cyano-5-[[(2-methylpropanoyl)oxy]methyl]oxolane-3,4-diyl bis(2-methylpropanoate)→(2R,3R,4R,5R)-2-(4-Amino-5-chloropyrrolo[2,1-f][1,2,4]triazin-7-yl)-2-cyano-5-[[(2-methylpropanoyl)oxy]methyl]oxolane-3,4-diyl bis(2-methylpropanoate)→(2{R},3{R},4{S},5{R})-2-(4-Azanylpyrrolo[2,1-f][1,2,4]triazin-7-yl)-5-(hydroxymethyl)-3,4-bis(oxidanyl)oxolane-2-carbonitrile→((2R,3R,4R,5R)-5-(4-Aminopyrrolo(2,1-f)(1,2,4)triazin-7-yl)-5-cyano-3,4-bis(2-methylpropanoyloxy)tetrahydrofuran-2-yl)methyl 2-methylpropanoate
(2R,3R,4S,5R)-2-(4-Amino-5-bromopyrrolo[2,1-f][1,2,4]triazin-7-yl)-3,4-dihydroxy-5-(hydroxymethyl)oxolane-2-carbonitrile→(2R,3R,4S,5R)-2-(4-Amino-5-deuteriopyrrolo[2,1-f][1,2,4]triazin-7-yl)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-carbonitrile→(2R,3R,4S,5R)-2-[4-Amino-5-deuteropyrrolo[2,1-f][1,2,4]triazin-7-yl]-3,4-dihydroxy-5-(hydroxymethyl)oxolane-2-carbonitrile hydrogen chloride→2-Methylpropanoyl 2-methylpropanoate→2-Methylpropanoyl chloride→(2R,3R,4R,5R)-2-[5-Bromo-4-(2-methylpropanamido)pyrrolo[2,1-f][1,2,4]triazin-7-yl]-2-cyano-5-[[(2-methylpropanoyl)oxy]methyl]oxolane-3,4-diyl bis(2-methylpropanoate)→(2R,3R,4R,5R)-2-Cyano-2-[4-(2-methylpropanamido)-5-deuteropyrrolo[2,1-f][1,2,4]triazin-7-yl]-5-[[(2-methylpropanoyl)oxy]methyl]oxolane-3,4-diyl bis(2-methylpropanoate)
1-(beta-D-Ribofuranosyl)uracil→1-[(3aR,4R,6R,6aR)-6-(Hydroxymethyl)-2,2-dimethyl-tetrahydro-2H-furo[3,4-d][1,3]dioxol-4-yl]-1,2,3,4-tetrahydropyrimidine-2,4-dione<-fgf->2',3'-O-Isopropylideneuridine→2-Methylpropionic anhydride→2',3'-O-(1-Methylethylidene)-5'-O-(2-methylpropanoyl)uridine→N-Hydroxy-2',3'-O-(1-methylethylidene)-5'-O-(2-methylpropanoyl)cytidine→1H-1,2,4-Triazole→1-[2,3-O-(1-Methylethylidene)-5-O-(2-methylpropanoyl)-beta-D-ribofuranosyl]-4-(1H-1,2,4-triazol-1-yl)pyrimidin-2(1H)-one→1-beta-D-Ribofuranosyl-4-(1H-1,2,4-triazol-1-yl)-3,4-dihydropyrimidin-2(1H)-one→1-[2,3-O-(1-Methylethylidene)-beta-D-ribofuranosyl]-4-(1H-1,2,4-triazol-1-yl)pyrimidin-2(1H)-one→Acetone O-isobutyryloxime→1-[(2xi)-5-O-(2-Methylpropanoyl)-beta-D-erythro-pentofuranosyl]-4-(1H-1,2,4-triazol-1-yl)-3,4-dihydropyrimidin-2(1H)-one
Molnupiravir-012→Methyl 2,3-O-isopropylidene-beta-D-ribofuranoside→Methyl 5-O-benzoyl-2,3-O-(1-methylethylidene)-beta-D-ribofuranoside→1,2,3-Tri-O-acetyl-5-O-benzoyl-beta-D-ribofuranose→2-Methylpropionyl chloride→N-(2-Oxo-1,2-dihydropyrimidin-4-yl)acetamide→N-Acetyl-2',3'-di-O-acetyl-5'-O-benzoylcytidine→Cytosine-1-beta-D-ribofuranoside→Sulfuric acid 2',3'-O-(1-methylethylidene)cytidine→2',3'-O-(1-Methylethylidene)cytidine→2',3'-O-(1-Methylethylidene)-N-(2-methylpropanoyl)-5'-O-(2-methylpropanoyl)cytidine→Hydroxylamine→Hydroxylamine hydrochloride→Hydroxylamine sulfate→N-Hydroxy-2',3'-O-(1-methylethylidene)-5'-O-(2-methylpropanoyl)cytidine→2-Methylpropionic anhydride
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 | Action |
|---|---|---|---|---|---|---|
| Unibest Taizhou GMP-like Site | ((3aR,4R,6R,6aR)-6-(4-(hydroxyamino)-2-oxopyrimidin-1(2H)-yl)-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxol-4-yl)methyl isobutyrate Pharmaceutical Intermediates | On request | On request | On request | — |
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.