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2D Structure
Also known as: Therarubicin (tn), Pirarubicin hydrochloride, Pinorubin (tn), Dtxsid00915024, D08386, (7s,9s)-7-[(2r,4s,5s,6s)-4-amino-6-methyl-5-[(2s)-oxan-2-yl]oxyoxan-2-yl]oxy-6,9,11-trihydroxy-9-(2-hydroxyacetyl)-4-methoxy-8,10-dihydro-7h-tetracene-5,12-dione;hydrochloride
Molecular Formula
C32H38ClNO12
Molecular Weight
664.1  g/mol
InChI Key
ZPHYPKKFSHAVOE-QXTSSQDCSA-N

Pirarubicin Hydrochloride is the hydrochloride salt form of pirarubicin, an analogue of the anthracycline antineoplastic antibiotic doxorubicin with antineoplastic activity. Pirarubicin intercalates into DNA and interacts with topoisomerase II, thereby inhibiting DNA replication and repair as well as RNA and protein synthesis. This agent is less cardiotoxic than doxorubicin and exhibits activity against some doxorubicin-resistant cell lines.
1 2D Structure

2D Structure

2 Identification
2.1 Computed Descriptors
2.1.1 IUPAC Name
(7S,9S)-7-[(2R,4S,5S,6S)-4-amino-6-methyl-5-[(2S)-oxan-2-yl]oxyoxan-2-yl]oxy-6,9,11-trihydroxy-9-(2-hydroxyacetyl)-4-methoxy-8,10-dihydro-7H-tetracene-5,12-dione;hydrochloride
2.1.2 InChI
InChI=1S/C32H37NO12.ClH/c1-14-31(45-21-8-3-4-9-42-21)17(33)10-22(43-14)44-19-12-32(40,20(35)13-34)11-16-24(19)30(39)26-25(28(16)37)27(36)15-6-5-7-18(41-2)23(15)29(26)38;/h5-7,14,17,19,21-22,31,34,37,39-40H,3-4,8-13,33H2,1-2H3;1H/t14-,17-,19-,21-,22-,31+,32-;/m0./s1
2.1.3 InChI Key
ZPHYPKKFSHAVOE-QXTSSQDCSA-N
2.1.4 Canonical SMILES
CC1C(C(CC(O1)OC2CC(CC3=C2C(=C4C(=C3O)C(=O)C5=C(C4=O)C(=CC=C5)OC)O)(C(=O)CO)O)N)OC6CCCCO6.Cl
2.1.5 Isomeric SMILES
C[C@H]1[C@H]([C@H](C[C@@H](O1)O[C@H]2C[C@@](CC3=C2C(=C4C(=C3O)C(=O)C5=C(C4=O)C(=CC=C5)OC)O)(C(=O)CO)O)N)O[C@H]6CCCCO6.Cl
2.2 Synonyms
2.2.1 MeSH Synonyms

1. 4'-o-tetrahydropyranyladriamycin

2. 4'-o-tetrahydropyranyldoxorubicin

3. 4'-o-tetrapyranyldoxorubicin

4. Pirarubicin

5. Pirarubicin Hydrochloride

6. Thprubicine

7. Thepirubicin

8. Theprubicin

9. Therarubicin

10. Thp-adm

11. Thp-adriamycin

12. Thp-dox

13. Thp-doxorubicin

2.2.2 Depositor-Supplied Synonyms

1. Therarubicin (tn)

2. Pirarubicin Hydrochloride

3. Pinorubin (tn)

4. Dtxsid00915024

5. D08386

6. (7s,9s)-7-[(2r,4s,5s,6s)-4-amino-6-methyl-5-[(2s)-oxan-2-yl]oxyoxan-2-yl]oxy-6,9,11-trihydroxy-9-(2-hydroxyacetyl)-4-methoxy-8,10-dihydro-7h-tetracene-5,12-dione;hydrochloride

7. 3,5,12-trihydroxy-3-(hydroxyacetyl)-10-methoxy-6,11-dioxo-1,2,3,4,6,11-hexahydrotetracen-1-yl 3-amino-2,3,6-trideoxy-4-o-oxan-2-ylhexopyranoside--hydrogen Chloride (1/1)

2.3 Create Date
2005-08-09
3 Chemical and Physical Properties
Molecular Weight 664.1 g/mol
Molecular Formula C32H38ClNO12
Hydrogen Bond Donor Count6
Hydrogen Bond Acceptor Count13
Rotatable Bond Count7
Exact Mass663.2082533 g/mol
Monoisotopic Mass663.2082533 g/mol
Topological Polar Surface Area204 Ų
Heavy Atom Count46
Formal Charge0
Complexity1120
Isotope Atom Count0
Defined Atom Stereocenter Count7
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
Covalently Bonded Unit Count2
4 Pharmacology and Biochemistry
4.1 MeSH Pharmacological Classification

Antineoplastic Agents

Substances that inhibit or prevent the proliferation of NEOPLASMS. (See all compounds classified as Antineoplastic Agents.)