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2D Structure
Also known as: Rova-t, Rovalpituzumab-tesirin, Unii-p256hb60ff, Rovalpituzumab tesirine [inn], P256hb60ff, Rovalpituzumab tesirine [who-dd]
Molecular Formula
C78H108N10O25S
Molecular Weight
1617.8  g/mol
InChI Key
NQUUPTGRJYIXSL-YPDXTJLXSA-N

Rovalpituzumab Tesirine is an antibody-drug conjugate (ADC) containing a humanized IgG1 monoclonal antibody (MAb) directed against the delta-like protein 3 (DLL3), conjugated to the cytotoxic pyrrolobenzodiazepine (PBD) dimer D6.5 (SC-DR002) via a maleimide-containing linker with an eight-carbon polyethylene glycol spacer and a cathepsin B-cleavable valine-alanine dipeptide, with potential antineoplastic activity. The MAb moiety of rovalpituzumab tesirine selectively binds to DLL3 on tumor cell surfaces. Upon internalization of the ADC, the dipeptide linker is cleaved and D6.5 is released. Then the imine groups of the PBD moiety bind to the N2 positions of guanines on opposite strands of DNA. This induces DNA strand breaks, inhibits DNA replication, leads to G2/M cell cycle arrest, induces cell death, and inhibits the proliferation of DLL3-overexpressing tumor cells. DLL3, a membrane protein that binds to Notch receptors and regulates Notch-mediated signaling and gene transcription, is overexpressed by certain cancers but is rarely expressed by normal, healthy cells.
1 2D Structure

2D Structure

2 Identification
2.1 Computed Descriptors
2.1.1 IUPAC Name
(2R)-3-[(3R)-1-[3-[2-[2-[2-[2-[2-[2-[2-[2-[3-[[(2S)-1-[[(2S)-1-[4-[[(6S,6aS)-3-[5-[[(6aS)-2-methoxy-8-methyl-11-oxo-6a,7-dihydropyrrolo[2,1-c][1,4]benzodiazepin-3-yl]oxy]pentoxy]-6-hydroxy-2-methoxy-8-methyl-11-oxo-6a,7-dihydro-6H-pyrrolo[2,1-c][1,4]benzodiazepine-5-carbonyl]oxymethyl]anilino]-1-oxopropan-2-yl]amino]-3-methyl-1-oxobutan-2-yl]amino]-3-oxopropoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethylamino]-3-oxopropyl]-2,5-dioxopyrrolidin-3-yl]sulfanyl-2-aminopropanoic acid
2.1.2 InChI
InChI=1S/C78H108N10O25S/c1-49(2)70(84-68(90)16-21-103-23-25-105-27-29-107-31-33-109-35-36-110-34-32-108-30-28-106-26-24-104-22-17-80-67(89)15-18-85-69(91)43-66(76(85)97)114-48-58(79)77(98)99)72(93)82-52(5)71(92)83-54-13-11-53(12-14-54)47-113-78(100)88-60-42-65(63(102-7)40-57(60)74(95)87-46-51(4)38-61(87)75(88)96)112-20-10-8-9-19-111-64-41-59-56(39-62(64)101-6)73(94)86-45-50(3)37-55(86)44-81-59/h11-14,39-42,44-46,49,52,55,58,61,66,70,75,96H,8-10,15-38,43,47-48,79H2,1-7H3,(H,80,89)(H,82,93)(H,83,92)(H,84,90)(H,98,99)/t52-,55-,58-,61-,66+,70-,75-/m0/s1
2.1.3 InChI Key
NQUUPTGRJYIXSL-YPDXTJLXSA-N
2.1.4 Canonical SMILES
CC1=CN2C(C1)C=NC3=CC(=C(C=C3C2=O)OC)OCCCCCOC4=C(C=C5C(=C4)N(C(C6CC(=CN6C5=O)C)O)C(=O)OCC7=CC=C(C=C7)NC(=O)C(C)NC(=O)C(C(C)C)NC(=O)CCOCCOCCOCCOCCOCCOCCOCCOCCNC(=O)CCN8C(=O)CC(C8=O)SCC(C(=O)O)N)OC
2.1.5 Isomeric SMILES
CC1=CN2[C@@H](C1)C=NC3=CC(=C(C=C3C2=O)OC)OCCCCCOC4=C(C=C5C(=C4)N([C@H]([C@@H]6CC(=CN6C5=O)C)O)C(=O)OCC7=CC=C(C=C7)NC(=O)[C@H](C)NC(=O)[C@H](C(C)C)NC(=O)CCOCCOCCOCCOCCOCCOCCOCCOCCNC(=O)CCN8C(=O)C[C@H](C8=O)SC[C@@H](C(=O)O)N)OC
2.2 Synonyms
2.2.1 MeSH Synonyms

1. Sc16ld6.5

2. Sc-002

3. Sc002

2.2.2 Depositor-Supplied Synonyms

1. Rova-t

2. Rovalpituzumab-tesirin

3. Unii-p256hb60ff

4. Rovalpituzumab Tesirine [inn]

5. P256hb60ff

6. Rovalpituzumab Tesirine [who-dd]

7. Sc002

8. Rovalpituzumab Tesirine [usan:inn]

9. Sc0002

10. 1613313-09-9

2.3 Create Date
2018-01-14
3 Chemical and Physical Properties
Molecular Weight 1617.8 g/mol
Molecular Formula C78H108N10O25S
XLogP3-1.6
Hydrogen Bond Donor Count7
Hydrogen Bond Acceptor Count28
Rotatable Bond Count53
Exact Mass1616.72078014 g/mol
Monoisotopic Mass1616.72078014 g/mol
Topological Polar Surface Area456 Ų
Heavy Atom Count114
Formal Charge0
Complexity3190
Isotope Atom Count0
Defined Atom Stereocenter Count7
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
Covalently Bonded Unit Count1
4 Drug and Medication Information
4.1 Drug Indication

Treatment of lung carcinoma (small cell and non-small cell carcinoma)