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Murcko scaffold

4H,5H-Pyrazolo[1,5-a]quinazolin-5-one scaffold

11 chemicals on CompoundList share this ring system.

Rings
3
Scaffold atoms
14
Chemicals
11
With full pages
5
Scaffold SMILES

O=c1[nH]c2ccnn2c2ccccc12

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 4H,5H-Pyrazolo[1,5-a]quinazolin-5-one page
Murcko scaffold O=c1[nH]c2ccnn2c2ccccc12

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 1 to 11 of 11 chemicals

Ethyl 5-oxo-1H,5H-pyrazolo(1,5-a)quinazoline-3-carboxylate chemical structure, C13H11N3O3, CAS 1210155-06-8
Ethyl 5-oxo-1H,5H-pyrazolo(1,5-a)quinazoline-3-carboxylate
CAS 1210155-06-8C13H11N3O3
2-Methyl-5-oxo-1H-pyrazolo[1,5-a]quinazoline-3-carbaldehyde chemical structure, C12H9N3O2, CAS 2411265-06-8
2-Methyl-5-oxo-1H-pyrazolo[1,5-a]quinazoline-3-carbaldehyde
CAS 2411265-06-8C12H9N3O2
5-Oxo-4,5-dihydropyrazolo[1,5-a]quinazoline-3-carbonitrile chemical structure, C11H6N4O, CAS 124570-55-4
5-Oxo-4,5-dihydropyrazolo[1,5-a]quinazoline-3-carbonitrile
CAS 124570-55-4C11H6N4O
5-Oxo-1H,5H-pyrazolo[1,5-a]quinazoline-3-carboxylic acid chemical structure, C11H7N3O3, CAS 1181458-88-7
5-Oxo-1H,5H-pyrazolo[1,5-a]quinazoline-3-carboxylic acid
CAS 1181458-88-7C11H7N3O3
2-Methyl-4H,5H-pyrazolo[1,5-a]quinazolin-5-one chemical structure, C11H9N3O, CAS 25468-50-2
2-Methyl-4H,5H-pyrazolo[1,5-a]quinazolin-5-one
CAS 25468-50-2C11H9N3O
Ethyl 2-methyl-5-oxo-4,5-dihydropyrazolo[1,5-a]quinazoline-3-carboxylate chemical structure, C14H13N3O3, CAS 25468-52-4
Ethyl 2-methyl-5-oxo-4,5-dihydropyrazolo[1,5-a]quinazoline-3-carboxylate
CAS 25468-52-4C14H13N3O3
Ethyl 4,5-dihydro-5-oxopyrazolo[1,5-a]quinazoline-2-carboxylate chemical structure, C13H11N3O3, CAS 374696-89-6
Ethyl 4,5-dihydro-5-oxopyrazolo[1,5-a]quinazoline-2-carboxylate
CAS 374696-89-6C13H11N3O3
4H,5H-Pyrazolo[1,5-a]quinazolin-5-one chemical structure, C10H7N3O, CAS 1494669-12-3
4H,5H-Pyrazolo[1,5-a]quinazolin-5-one
CAS 1494669-12-3C10H7N3O
Methyl-5-oxo-4,5-dihydropyrazolo[1,5-a]quinazoline-3-carboxylate chemical structure, C12H9N3O3, CAS 1000175-85-8
Methyl-5-oxo-4,5-dihydropyrazolo[1,5-a]quinazoline-3-carboxylate
CAS 1000175-85-8C12H9N3O3
2-Ethyl-3-methyl-4H,5H-pyrazolo[1,5-a]quinazolin-5-one chemical structure, C13H13N3O, CAS 2137629-60-6
2-Ethyl-3-methyl-4H,5H-pyrazolo[1,5-a]quinazolin-5-one
CAS 2137629-60-6C13H13N3O
2-(Propan-2-yl)-4H,5H-pyrazolo[1,5-a]quinazolin-5-one chemical structure, C13H13N3O, CAS 2137624-73-6
2-(Propan-2-yl)-4H,5H-pyrazolo[1,5-a]quinazolin-5-one
CAS 2137624-73-6C13H13N3O