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Murcko scaffold

Pyrazolo[1,5-a]pyrimidin-5(1H)-one scaffold

292 chemicals on CompoundList share this ring system.

Rings
2
Scaffold atoms
10
Chemicals
292
With full pages
11
Scaffold SMILES

O=c1ccn2nccc2[nH]1

A Bemis-Murcko scaffold is what remains of a molecule when every side chain is removed: the rings and the chains that link them. Chemicals that share a scaffold often belong to the same compound series, which helps when you look for analogues, alternative suppliers or related building blocks.

Substructure search with this scaffoldOpen the Pyrazolo[1,5-a]pyrimidin-5(1H)-one page
Murcko scaffold O=c1ccn2nccc2[nH]1

Computed from the structures of the chemicals listed here. Stereo and charges are removed before the scaffold is taken.

Chemicals with this scaffold

Open one to see its structure, properties and suppliers.

Showing 145 to 192 of 292 chemicals

5-Hydroxy-7-(methoxymethyl)pyrazolo[1,5-a]pyrimidine-3-carbonitrile chemical structure, C9H8N4O2, CAS 1601759-24-3
5-Hydroxy-7-(methoxymethyl)pyrazolo[1,5-a]pyrimidine-3-carbonitrile
CAS 1601759-24-3C9H8N4O2
7-Ethyl-5-oxo-4H,5H-pyrazolo[1,5-a]pyrimidine-2-carboxylic acid chemical structure, C9H9N3O3, CAS 1595639-56-7
7-Ethyl-5-oxo-4H,5H-pyrazolo[1,5-a]pyrimidine-2-carboxylic acid
CAS 1595639-56-7C9H9N3O3
6,7-Dimethyl-5-oxo-4H,5H-pyrazolo[1,5-a]pyrimidine-2-carboxylic acid chemical structure, C9H9N3O3, CAS 1601082-05-6
6,7-Dimethyl-5-oxo-4H,5H-pyrazolo[1,5-a]pyrimidine-2-carboxylic acid
CAS 1601082-05-6C9H9N3O3
Ethyl7-(tert-butyl)-5-oxo-4,5-dihydropyrazolo[1,5-a]pyrimidine-2-carboxylate chemical structure, C13H17N3O3, CAS 1778976-56-9
Ethyl7-(tert-butyl)-5-oxo-4,5-dihydropyrazolo[1,5-a]pyrimidine-2-carboxylate
CAS 1778976-56-9C13H17N3O3
7-Ethyl-5-hydroxypyrazolo[1,5-a]pyrimidine-3-carboxylic acid chemical structure, C9H9N3O3, CAS 1593711-93-3
7-Ethyl-5-hydroxypyrazolo[1,5-a]pyrimidine-3-carboxylic acid
CAS 1593711-93-3C9H9N3O3
5-Hydroxy-7-methylpyrazolo[1,5-a]pyrimidine-3-carboxylic acid chemical structure, C8H7N3O3, CAS 1603313-37-6
5-Hydroxy-7-methylpyrazolo[1,5-a]pyrimidine-3-carboxylic acid
CAS 1603313-37-6C8H7N3O3
5-Hydroxy-6,7-dimethylpyrazolo[1,5-a]pyrimidine-3-carboxylic acid chemical structure, C9H9N3O3, CAS 1599548-98-7
5-Hydroxy-6,7-dimethylpyrazolo[1,5-a]pyrimidine-3-carboxylic acid
CAS 1599548-98-7C9H9N3O3
7-Hydroxy-3-iodo-2-methyl-4H,5H-pyrazolo[1,5-a]pyrimidin-5-one chemical structure, C7H6IN3O2, CAS 1599170-33-8
7-Hydroxy-3-iodo-2-methyl-4H,5H-pyrazolo[1,5-a]pyrimidin-5-one
CAS 1599170-33-8C7H6IN3O2
7-Ethyl-3-iodo-2-methyl-4H,5H-pyrazolo[1,5-a]pyrimidin-5-one chemical structure, C9H10IN3O, CAS 1602743-81-6
7-Ethyl-3-iodo-2-methyl-4H,5H-pyrazolo[1,5-a]pyrimidin-5-one
CAS 1602743-81-6C9H10IN3O
7-Ethyl-3-iodo-2,6-dimethyl-4H,5H-pyrazolo[1,5-a]pyrimidin-5-one chemical structure, C10H12IN3O, CAS 1592454-35-7
7-Ethyl-3-iodo-2,6-dimethyl-4H,5H-pyrazolo[1,5-a]pyrimidin-5-one
CAS 1592454-35-7C10H12IN3O
6-Ethyl-3-iodo-2,7-dimethyl-4H,5H-pyrazolo[1,5-a]pyrimidin-5-one chemical structure, C10H12IN3O, CAS 1599413-02-1
6-Ethyl-3-iodo-2,7-dimethyl-4H,5H-pyrazolo[1,5-a]pyrimidin-5-one
CAS 1599413-02-1C10H12IN3O
3-Iodo-2,7-dimethyl-4H,5H-pyrazolo[1,5-A]pyrimidin-5-one chemical structure, C8H8IN3O, CAS 1599696-17-9
3-Iodo-2,7-dimethyl-4H,5H-pyrazolo[1,5-A]pyrimidin-5-one
CAS 1599696-17-9C8H8IN3O
7-Hydroxy-3-iodo-2,6-dimethyl-4H,5H-pyrazolo[1,5-a]pyrimidin-5-one chemical structure, C8H8IN3O2, CAS 1594725-65-1
7-Hydroxy-3-iodo-2,6-dimethyl-4H,5H-pyrazolo[1,5-a]pyrimidin-5-one
CAS 1594725-65-1C8H8IN3O2
3-Iodo-2-methyl-7-(propan-2-yl)-4H,5H-pyrazolo[1,5-a]pyrimidin-5-one chemical structure, C10H12IN3O, CAS 1602417-81-1
3-Iodo-2-methyl-7-(propan-2-yl)-4H,5H-pyrazolo[1,5-a]pyrimidin-5-one
CAS 1602417-81-1C10H12IN3O
3-Iodo-2-methyl-7-propyl-4H,5H-pyrazolo[1,5-a]pyrimidin-5-one chemical structure, C10H12IN3O, CAS 1603295-26-6
3-Iodo-2-methyl-7-propyl-4H,5H-pyrazolo[1,5-a]pyrimidin-5-one
CAS 1603295-26-6C10H12IN3O
3-Iodo-2,6,7-trimethyl-4H,5H-pyrazolo[1,5-a]pyrimidin-5-one chemical structure, C9H10IN3O, CAS 1601104-90-8
3-Iodo-2,6,7-trimethyl-4H,5H-pyrazolo[1,5-a]pyrimidin-5-one
CAS 1601104-90-8C9H10IN3O
3-Iodo-2-methyl-4H,5H-pyrazolo[1,5-a]pyrimidin-5-one chemical structure, C7H6IN3O, CAS 1592077-86-5
3-Iodo-2-methyl-4H,5H-pyrazolo[1,5-a]pyrimidin-5-one
CAS 1592077-86-5C7H6IN3O
3-Iodo-7-(methoxymethyl)-2-methyl-4H,5H-pyrazolo[1,5-a]pyrimidin-5-one chemical structure, C9H10IN3O2, CAS 1602176-69-1
3-Iodo-7-(methoxymethyl)-2-methyl-4H,5H-pyrazolo[1,5-a]pyrimidin-5-one
CAS 1602176-69-1C9H10IN3O2
7-Ethylpyrazolo[1,5-a]pyrimidin-5-ol chemical structure, C8H9N3O, CAS 167372-31-8
7-Ethylpyrazolo[1,5-a]pyrimidin-5-ol
CAS 167372-31-8C8H9N3O
6-Ethyl-7-hydroxy-pyrazolo[1,5-a]pyrimidin-5(4H)-one chemical structure, C8H9N3O2, CAS 754211-01-3
6-Ethyl-7-hydroxy-pyrazolo[1,5-a]pyrimidin-5(4H)-one
CAS 754211-01-3C8H9N3O2
3-Nitropyrazolo[1,5-a]pyrimidin-5(4H)-one chemical structure, C6H4N4O3, CAS 1919868-75-9
3-Nitropyrazolo[1,5-a]pyrimidin-5(4H)-one
CAS 1919868-75-9C6H4N4O3
2-(Hydroxymethyl)pyrazolo[1,5-a]pyrimidin-5(4H)-one chemical structure, C7H7N3O2, CAS 1363210-36-9
2-(Hydroxymethyl)pyrazolo[1,5-a]pyrimidin-5(4H)-one
CAS 1363210-36-9C7H7N3O2
6-Methoxy-3-methylpyrazolo[1,5-a]pyrimidin-5-ol chemical structure, C8H9N3O2, CAS 1928768-27-7
6-Methoxy-3-methylpyrazolo[1,5-a]pyrimidin-5-ol
CAS 1928768-27-7C8H9N3O2
6-Methoxy-7-methylpyrazolo[1,5-a]pyrimidin-5-ol chemical structure, C8H9N3O2, CAS 1928817-16-6
6-Methoxy-7-methylpyrazolo[1,5-a]pyrimidin-5-ol
CAS 1928817-16-6C8H9N3O2