Duocarmycin DM free base - CAS 1116745-06-2

Duocarmycin DM free base - CAS 1116745-06-2 Catalog number: BADC-00811

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Duocarmycin DM free base is a DNA minor-groove alkylating agent, which can be used as an antibody drug conjugate (ADC) toxin. Duocarmycin DM free base is based on its characteristic curved indole structure and a spirocyclopropylcyclohexadienone electrophile to act anticancer activity.

Category
ADCs Cytotoxin
Product Name
Duocarmycin DM free base
CAS
1116745-06-2
Catalog Number
BADC-00811
Molecular Formula
C26H26ClN3O3
Molecular Weight
463.96
Duocarmycin DM free base

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Description
Duocarmycin DM free base is a DNA minor-groove alkylating agent, which can be used as an antibody drug conjugate (ADC) toxin. Duocarmycin DM free base is based on its characteristic curved indole structure and a spirocyclopropylcyclohexadienone electrophile to act anticancer activity.
Synonyms
[(1S)-1-(Chloromethyl)-5-hydroxy-1,2-dihydro-3H-benzo[e]indol-3-yl]{5-[2-(dimethylamino)ethoxy]-1H-indol-2-yl}methanone; Methanone, [(1S)-1-(chloromethyl)-1,2-dihydro-5-hydroxy-3H-benz[e]indol-3-yl][5-[2-(dimethylamino)ethoxy]-1H-indol-2-yl]-
IUPAC Name
[(1S)-1-(chloromethyl)-5-hydroxy-1,2-dihydrobenzo[e]indol-3-yl]-[5-[2-(dimethylamino)ethoxy]-1H-indol-2-yl]methanone
Canonical SMILES
CN(C)CCOC1=CC2=C(C=C1)NC(=C2)C(=O)N3CC(C4=C3C=C(C5=CC=CC=C54)O)CCl
InChI
InChI=1S/C26H26ClN3O3/c1-29(2)9-10-33-18-7-8-21-16(11-18)12-22(28-21)26(32)30-15-17(14-27)25-20-6-4-3-5-19(20)24(31)13-23(25)30/h3-8,11-13,17,28,31H,9-10,14-15H2,1-2H3/t17-/m1/s1
InChIKey
JRGWJJXUVWWGDA-QGZVFWFLSA-N
Density
1.3±0.1 g/cm3
Solubility
Soluble in DMSO
Appearance
Solid Power
Purity
≥97%
Shelf Life
-20°C 3 years powder; -80°C 2 years in solvent
Shipping
Room temperature, or blue ice upon request.
Storage
Store at -20°C, protect from light, stored under nitrogen
Boiling Point
712.9±60.0°C at 760 mmHg
Form
Solid
A Short Review on the Synthetic Strategies of Duocarmycin Analogs that are Powerful DNA Alkylating Agents
Anticancer Agents Med Chem . 2015;15(5):616-30.
The duocarmycins and CC-1065 are members of a class of DNA minor groove, AT-sequence selective, and adenine-N3 alkylating agents, isolated from Streptomyces sp. that exhibit extremely potent cytotoxicity against the growth of cancer cells grown in culture. Initial synthesis and structural modification of the cyclopropa[c] pyrrolo[3,2-e]indole (CPI) DNA-alkylating motif as well as the indole non-covalent binding region in the 1980s have led to several compounds that entered clinical trials as potential anticancer drugs. However, due to significant systemic toxicity none of the analogs have passed clinical evaluation. As a result, the intensity in the design, synthesis, and development of novel analogs of the duocarmycins has continued. Accordingly, in this review, which covers a period from the 1990s through the present time, the design and synthesis of duocarmycin SA are described along with the synthesis of novel and highly cytotoxic analogs that lack the chiral center. Examples of achiral analogs of duocarmycin SA described in this review include seco-DUMSA (39 and 40), seco-amino-CBI-TMI (13, Centanamycin), and seco-hydroxy-CBI-TMI (14). In addition, another novel class of biologically active duocarmycin SA analogs that contained the seco-iso-cyclopropylfurano[2,3-e]indoline (seco-iso-CFI) and seco-cyclopropyltetrahydrofurano[2,3-f]quinoline (seco-CFQ) DNA alkylating submit was also designed and synthesized. The synthesis of seco-iso-CFI-TMI (10, Tafuramycin A) and seco-CFQ-TMI (11, Tafuramycin B) is included in this review.
Structural, Biochemical, and Computational Studies Reveal the Mechanism of Selective Aldehyde Dehydrogenase 1A1 Inhibition by Cytotoxic Duocarmycin Analogues
Angew Chem Int Ed Engl . 2015 Nov 9;54(46):13550-4. doi: 10.1002/anie.201505749.
Analogues of the natural product duocarmycin bearing an indole moiety were shown to bind aldehyde dehydrogenase 1A1 (ALDH1A1) in addition to DNA, while derivatives without the indole solely addressed the ALDH1A1 protein. The molecular mechanism of selective ALDH1A1 inhibition by duocarmycin analogues was unraveled through cocrystallization, mutational studies, and molecular dynamics simulations. The structure of the complex shows the compound embedded in a hydrophobic pocket, where it is stabilized by several crucial π-stacking and van der Waals interactions. This binding mode positions the cyclopropyl electrophile for nucleophilic attack by the noncatalytic residue Cys302, thereby resulting in covalent attachment, steric occlusion of the active site, and inhibition of catalysis. The selectivity of duocarmycin analogues for ALDH1A1 is unique, since only minor alterations in the sequence of closely related protein isoforms restrict compound accessibility.
Selective cancer therapy by extracellular activation of a highly potent glycosidic duocarmycin analogue
Mol Pharm . 2013 May 6;10(5):1773-82. doi: 10.1021/mp300581u. Epub 2013 Mar 26
Conventional cancer chemotherapy is limited by systemic toxicity and poor selectivity. Tumor-selective activation of glucuronide prodrugs by beta-glucuronidase in the tumor microenvironment in a monotherapeutic approach is one promising way to increase cancer selectivity. Here we examined the cellular requirement for enzymatic activation as well as the in vivo toxicity and antitumor activity of a glucuronide prodrug of a potent duocarmycin analogue that is active at low picomolar concentrations. Prodrug activation by intracellular and extracellular beta-glucuronidase was investigated by measuring prodrug 2 cytotoxicity against human cancer cell lines that displayed different endogenous levels of beta-glucuronidase, as well as against beta-glucuronidase-deficient fibroblasts and newly established beta-glucuronidase knockdown cancer lines. In all cases, glucuronide prodrug 2 was 1000-5000 times less cytotoxic than the parent duocarmycin analogue regardless of intracellular levels of beta-glucuronidase. By contrast, cancer cells that displayed tethered beta-glucuronidase on their plasma membrane were 80-fold more sensitive to glucuronide prodrug 2, demonstrating that prodrug activation depended primarily on extracellular rather than intracellular beta-glucuronidase activity. Glucuronide prodrug 2 (2.5 mg/kg) displayed greater antitumor activity and less systemic toxicity in vivo than the clinically used drug carboplatin (50 mg/kg) to mice bearing human lung cancer xenografts. Intratumoral injection of an adenoviral vector expressing membrane-tethered beta-glucuronidase dramatically enhanced the in vivo antitumor activity of prodrug 2. Our data provide evidence that increasing extracellular beta-glucuronidase activity in the tumor microenvironment can boost the therapeutic index of a highly potent glucuronide prodrug.
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The dilution calculator equation

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This equation is commonly abbreviated as: C1V1 = C2V2

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