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Murcko scaffold

Allopurinol scaffold

280 chemicals on CompoundList share this ring system.

Rings
2
Scaffold atoms
10
Chemicals
280
With full pages
43
Scaffold SMILES

O=c1[nH]cnc2[nH]ncc12

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 Allopurinol page
Murcko scaffold O=c1[nH]cnc2[nH]ncc12

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 48 of 280 chemicals

1,5-Dihydro-1,5-bis(hydroxymethyl)-4H-pyrazolo(3,4-d)pyrimidin-4-one chemical structure, C7H8N4O3, CAS 79570-58-4
1,5-Dihydro-1,5-bis(hydroxymethyl)-4H-pyrazolo(3,4-d)pyrimidin-4-one
CAS 79570-58-4C7H8N4O3
1,5-Dimethyl-1,5-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one chemical structure, C7H8N4O, CAS 5334-54-3
1,5-Dimethyl-1,5-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one
CAS 5334-54-3C7H8N4O
5-Butyl-1,6-dimethyl-1,5-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one chemical structure, C11H16N4O, CAS 88320-52-9
5-Butyl-1,6-dimethyl-1,5-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one
CAS 88320-52-9C11H16N4O
1,5,6-Trimethyl-1,5-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one chemical structure, C8H10N4O, CAS 88320-49-4
1,5,6-Trimethyl-1,5-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one
CAS 88320-49-4C8H10N4O
1,6-Dimethyl-5-propyl-1,5-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one chemical structure, C10H14N4O, CAS 88320-50-7
1,6-Dimethyl-5-propyl-1,5-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one
CAS 88320-50-7C10H14N4O
1,6-Dimethyl-5-propan-2-ylpyrazolo[3,4-d]pyrimidin-4-one chemical structure, C10H14N4O, CAS 88320-51-8
1,6-Dimethyl-5-propan-2-ylpyrazolo[3,4-d]pyrimidin-4-one
CAS 88320-51-8C10H14N4O
1,6-Dimethyl-5-prop-2-enylpyrazolo[3,4-d]pyrimidin-4-one chemical structure, C10H12N4O, CAS 88320-54-1
1,6-Dimethyl-5-prop-2-enylpyrazolo[3,4-d]pyrimidin-4-one
CAS 88320-54-1C10H12N4O
1,6-Dimethyl-5-octyl-1,5-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one chemical structure, C15H24N4O, CAS 88320-53-0
1,6-Dimethyl-5-octyl-1,5-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one
CAS 88320-53-0C15H24N4O
6-Methyl-5-propyl-1H-pyrazolo[5,4-d]pyrimidin-4-one chemical structure, C9H12N4O, CAS 90399-83-0
6-Methyl-5-propyl-1H-pyrazolo[5,4-d]pyrimidin-4-one
CAS 90399-83-0C9H12N4O
5-Butyl-6-methyl-1H-pyrazolo[5,4-d]pyrimidin-4-one chemical structure, C10H14N4O, CAS 90399-84-1
5-Butyl-6-methyl-1H-pyrazolo[5,4-d]pyrimidin-4-one
CAS 90399-84-1C10H14N4O
6-Ethyl-1,5-dimethyl-1,5-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one chemical structure, C9H12N4O, CAS 88320-62-1
6-Ethyl-1,5-dimethyl-1,5-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one
CAS 88320-62-1C9H12N4O
6-Ethyl-1-methyl-5-propylpyrazolo[3,4-d]pyrimidin-4-one chemical structure, C11H16N4O, CAS 88320-63-2
6-Ethyl-1-methyl-5-propylpyrazolo[3,4-d]pyrimidin-4-one
CAS 88320-63-2C11H16N4O
5-Amino-1H-pyrazolo[3,4-d]pyrimidin-4-one chemical structure, C5H5N5O, CAS 81375-79-3
5-Amino-1H-pyrazolo[3,4-d]pyrimidin-4-one
CAS 81375-79-3C5H5N5O
5-Amino-2,6-dimethyl-4,5-dihydro-2H-pyrazolo[3,4-d]pyrimidin-4-one chemical structure, C7H9N5O, CAS 114936-13-9
5-Amino-2,6-dimethyl-4,5-dihydro-2H-pyrazolo[3,4-d]pyrimidin-4-one
CAS 114936-13-9C7H9N5O
2-[1-(2-Hydroxyethyl)-4-oxo-1,4-dihydro-5H-pyrazolo[3,4-d]pyrimidin-5-yl]acetamide chemical structure, C9H11N5O3, CAS 899971-27-8
2-[1-(2-Hydroxyethyl)-4-oxo-1,4-dihydro-5H-pyrazolo[3,4-d]pyrimidin-5-yl]acetamide
CAS 899971-27-8C9H11N5O3
2-(1-(2-Hydroxyethyl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)-N-propylacetamide chemical structure, C12H17N5O3, CAS 899971-59-6
2-(1-(2-Hydroxyethyl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)-N-propylacetamide
CAS 899971-59-6C12H17N5O3
2-(1-(2-Hydroxyethyl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)-N-isopropylacetamide chemical structure, C12H17N5O3, CAS 900011-75-8
2-(1-(2-Hydroxyethyl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)-N-isopropylacetamide
CAS 900011-75-8C12H17N5O3
N-(tert-Butyl)-2-(1-(2-hydroxyethyl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)acetamide chemical structure, C13H19N5O3, CAS 941885-36-5
N-(tert-Butyl)-2-(1-(2-hydroxyethyl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)acetamide
CAS 941885-36-5C13H19N5O3
2-(1-(2-Hydroxyethyl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)-N,N-diisopropylacetamide chemical structure, C15H23N5O3, CAS 899971-61-0
2-(1-(2-Hydroxyethyl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)-N,N-diisopropylacetamide
CAS 899971-61-0C15H23N5O3
N-Allyl-2-(1-(2-hydroxyethyl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)acetamide chemical structure, C12H15N5O3, CAS 900011-78-1
N-Allyl-2-(1-(2-hydroxyethyl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)acetamide
CAS 900011-78-1C12H15N5O3
2,5-Dihydro-2,5-dimethyl-4H-pyrazolo[3,4-d]pyrimidin-4-one chemical structure, C7H8N4O, CAS 57121-50-3
2,5-Dihydro-2,5-dimethyl-4H-pyrazolo[3,4-d]pyrimidin-4-one
CAS 57121-50-3C7H8N4O
4H-Pyrazolo[3,4-d]pyrimidin-4-one, 2,7-dihydro-2,7-dimethyl- chemical structure, C7H8N4O, CAS 73095-64-4
4H-Pyrazolo[3,4-d]pyrimidin-4-one, 2,7-dihydro-2,7-dimethyl-
CAS 73095-64-4C7H8N4O
5-Methyl-1H-pyrazolo[3,4-d]pyrimidin-4(5H)-one chemical structure, C6H6N4O, CAS 17840-75-4
5-Methyl-1H-pyrazolo[3,4-d]pyrimidin-4(5H)-one
CAS 17840-75-4C6H6N4O
7-Methylallopurinol chemical structure, C6H6N4O, CAS 71800-54-9
7-Methylallopurinol
CAS 71800-54-9C6H6N4O