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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 49 to 96 of 292 chemicals

3,6-Dimethylpyrazolo[1,5-a]pyrimidine-5,7-diol chemical structure, C8H9N3O2, CAS 1566094-57-2
3,6-Dimethylpyrazolo[1,5-a]pyrimidine-5,7-diol
CAS 1566094-57-2C8H9N3O2
2-tert-Butylpyrazolo[1,5-a]pyrimidine-5,7-diol chemical structure, C10H13N3O2, CAS 1566899-70-4
2-tert-Butylpyrazolo[1,5-a]pyrimidine-5,7-diol
CAS 1566899-70-4C10H13N3O2
3-Chloro-2-methylpyrazolo[1,5-a]pyrimidin-5(1H)-one chemical structure, C7H6ClN3O, CAS 121343-06-4
3-Chloro-2-methylpyrazolo[1,5-a]pyrimidin-5(1H)-one
CAS 121343-06-4C7H6ClN3O
2-tert-Butylpyrazolo[1,5-a]pyrimidin-5(1H)-one chemical structure, C10H13N3O, CAS 140705-38-0
2-tert-Butylpyrazolo[1,5-a]pyrimidin-5(1H)-one
CAS 140705-38-0C10H13N3O
5-Oxo-4,5-dihydropyrazolo(1,5-a)pyrimidine-3-carbonitrile chemical structure, C7H4N4O, CAS 1224288-95-2
5-Oxo-4,5-dihydropyrazolo(1,5-a)pyrimidine-3-carbonitrile
CAS 1224288-95-2C7H4N4O
7-Amino-5-oxo-4H,5H-pyrazolo[1,5-a]pyrimidine-2-carboxylic acid chemical structure, C7H6N4O3, CAS 197367-86-5
7-Amino-5-oxo-4H,5H-pyrazolo[1,5-a]pyrimidine-2-carboxylic acid
CAS 197367-86-5C7H6N4O3
7-Amino-3-bromopyrazolo[1,5-a]pyrimidin-5-ol chemical structure, C6H5BrN4O, CAS 1260810-96-5
7-Amino-3-bromopyrazolo[1,5-a]pyrimidin-5-ol
CAS 1260810-96-5C6H5BrN4O
7-Amino-5-oxo-4H,5H-pyrazolo[1,5-a]pyrimidine-3-carboxylic acid chemical structure, C7H6N4O3, CAS 856587-91-2
7-Amino-5-oxo-4H,5H-pyrazolo[1,5-a]pyrimidine-3-carboxylic acid
CAS 856587-91-2C7H6N4O3
6-(2-Hydroxyethyl)-7-methylpyrazolo[1,5-a]pyrimidin-5-ol chemical structure, C9H11N3O2, CAS 1565527-14-1
6-(2-Hydroxyethyl)-7-methylpyrazolo[1,5-a]pyrimidin-5-ol
CAS 1565527-14-1C9H11N3O2
7-Amino-2-methylpyrazolo[1,5-a]pyrimidin-5-ol chemical structure, C7H8N4O, CAS 96335-50-1
7-Amino-2-methylpyrazolo[1,5-a]pyrimidin-5-ol
CAS 96335-50-1C7H8N4O
3-Ethyl-6-methylpyrazolo[1,5-a]pyrimidine-5,7-diol chemical structure, C9H11N3O2, CAS 1310318-86-5
3-Ethyl-6-methylpyrazolo[1,5-a]pyrimidine-5,7-diol
CAS 1310318-86-5C9H11N3O2
7-Hydroxy-6-isopropyl-5-oxo-4,5-dihydropyrazolo[1,5-a]pyrimidine-3-carbonitrile chemical structure, C10H10N4O2, CAS 1310261-25-6
7-Hydroxy-6-isopropyl-5-oxo-4,5-dihydropyrazolo[1,5-a]pyrimidine-3-carbonitrile
CAS 1310261-25-6C10H10N4O2
3-Bromo-7-hydroxy-6-(propan-2-yl)-4H,5H-pyrazolo[1,5-a]pyrimidin-5-one chemical structure, C9H10BrN3O2, CAS 1310096-96-8
3-Bromo-7-hydroxy-6-(propan-2-yl)-4H,5H-pyrazolo[1,5-a]pyrimidin-5-one
CAS 1310096-96-8C9H10BrN3O2
Ethyl 5,7-dihydroxy-6-methylpyrazolo[1,5-a]pyrimidine-3-carboxylate chemical structure, C10H11N3O4, CAS 1310319-14-2
Ethyl 5,7-dihydroxy-6-methylpyrazolo[1,5-a]pyrimidine-3-carboxylate
CAS 1310319-14-2C10H11N3O4
7-Hydroxy-6-(propan-2-yl)-4H,5H-pyrazolo[1,5-a]pyrimidin-5-one chemical structure, C9H11N3O2, CAS 1310277-74-7
7-Hydroxy-6-(propan-2-yl)-4H,5H-pyrazolo[1,5-a]pyrimidin-5-one
CAS 1310277-74-7C9H11N3O2
7-Hydroxy-2-methyl-6-(propan-2-yl)-4H,5H-pyrazolo[1,5-a]pyrimidin-5-one chemical structure, C10H13N3O2, CAS 1310308-10-1
7-Hydroxy-2-methyl-6-(propan-2-yl)-4H,5H-pyrazolo[1,5-a]pyrimidin-5-one
CAS 1310308-10-1C10H13N3O2
5,7-Dihydroxypyrazolo[1,5-a]pyrimidine-3-carboxylic acid chemical structure, C7H5N3O4, CAS 89975-52-0
5,7-Dihydroxypyrazolo[1,5-a]pyrimidine-3-carboxylic acid
CAS 89975-52-0C7H5N3O4
3-Ethyl-7-hydroxypyrazolo[1,5-a]pyrimidin-5(4H)-one chemical structure, C8H9N3O2, CAS 1479504-65-8
3-Ethyl-7-hydroxypyrazolo[1,5-a]pyrimidin-5(4H)-one
CAS 1479504-65-8C8H9N3O2
3-Bromo-6-(2-hydroxyethyl)-7-methylpyrazolo[1,5-a]pyrimidin-5-ol chemical structure, C9H10BrN3O2, CAS 1780933-34-7
3-Bromo-6-(2-hydroxyethyl)-7-methylpyrazolo[1,5-a]pyrimidin-5-ol
CAS 1780933-34-7C9H10BrN3O2
Methyl 5-oxo-4,5-dihydropyrazolo[1,5-a]pyrimidine-2-carboxylate chemical structure, C8H7N3O3, CAS 1228351-47-0
Methyl 5-oxo-4,5-dihydropyrazolo[1,5-a]pyrimidine-2-carboxylate
CAS 1228351-47-0C8H7N3O3
3-Bromo-7-hydroxy-2-methylpyrazolo[1,5-a]pyrimidin-5(4H)-one chemical structure, C7H6BrN3O2, CAS 1310320-89-8
3-Bromo-7-hydroxy-2-methylpyrazolo[1,5-a]pyrimidin-5(4H)-one
CAS 1310320-89-8C7H6BrN3O2
2-Aminopyrazolo[1,5-a]pyrimidin-5(4H)-one chemical structure, C6H6N4O, CAS 1935457-15-0
2-Aminopyrazolo[1,5-a]pyrimidin-5(4H)-one
CAS 1935457-15-0C6H6N4O
2-(Ethylthio)pyrazolo[1,5-a]pyrimidin-5(4H)-one chemical structure, C8H9N3OS, CAS 197367-82-1
2-(Ethylthio)pyrazolo[1,5-a]pyrimidin-5(4H)-one
CAS 197367-82-1C8H9N3OS
2,3-Dimethylpyrazolo[1,5-a]pyrimidine-5,7-diol chemical structure, C8H9N3O2, CAS 1500104-07-3
2,3-Dimethylpyrazolo[1,5-a]pyrimidine-5,7-diol
CAS 1500104-07-3C8H9N3O2