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Chemical Structure| 1092790-21-0 Chemical Structure| 1092790-21-0

Structure of 1092790-21-0

Chemical Structure| 1092790-21-0

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Product Citations

Zhang, Zhumin ; Sanders, Hailey S ; Dragun, Vivienne ; Cole, Sara ; Smith, Bradley D ;

Abstract: Compared to cultured 2D cell monolayers, 3D multicellular spheroids are more realistic tumor models. Nonetheless, spheroids remain under-utilized in preclinical research, in part, because there is a lack of fluorescence sensors that can noninvasively interrogate all the individual cells within a spheroid. This present study describes a deep-red fluorogenic molecular probe for microscopic imaging of cells that contain a high level of nitroreductase enzyme activity as a biomarker of cell hypoxia. A first-generation version of the probe produced “turnon” fluorescence in a 2D cell monolayer under hypoxic conditions; however, it was not useful in a 3D multicellular tumor spheroid because it only accumulated in the peripheral cells. To guide the probe structural optimization process, an intuitive theoretical membrane partition model was conceived to predict how a dosed probe will distribute within a 3D spheroid. The model identifies three limiting molecular diffusion pathways that are determined by a probe’s membrane partition properties. A lipophilic probe with high membrane affinity rapidly becomes trapped in the membranes of the peripheral cells. In contrast, a very hydrophilic probe molecule with negligible membrane affinity diffuses rapidly through the spheroid intercellular space and rarely enters the cells. However, a probe molecule with intermediate membrane affinity undergoes sequential diffusion in and out of cells and distributes to all the cells within a spheroid. Using the model as a predictive tool, a secondgeneration fluorescent probe was prepared with a smaller and more hydrophilic molecular structure, and optical sectioning using structured illumination or light sheet microscopy revealed roughly even probe diffusion throughout a tumor spheroid. The membrane permeation model is likely to be broadly applicable for the structural optimization of various classes of molecules and nanoparticles to enable even distribution within a tumor spheroid.

Keywords: tumor spheroid ; fluorescence microscopy ; hypoxia ; nitroreductase ; membrane partition coefficient

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Product Details of [ 1092790-21-0 ]

CAS No. :1092790-21-0
Formula : C9H8BNO2
M.W : 172.98
SMILES Code : OB(C1=CC2=C(C=C1)C=CN=C2)O
MDL No. :MFCD08234617
InChI Key :SVSZHSMOMDNMLS-UHFFFAOYSA-N
Pubchem ID :23597419

Safety of [ 1092790-21-0 ]

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H302-H315-H319-H332-H335
Precautionary Statements:P280-P305+P351+P338-P310

Application In Synthesis of [ 1092790-21-0 ]

* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.

  • Downstream synthetic route of [ 1092790-21-0 ]

[ 1092790-21-0 ] Synthesis Path-Downstream   1~2

  • 1
  • [ 1092790-21-0 ]
  • [ 32138-69-5 ]
  • (3S,8S,9S,10R,13S,14S,17S)-17-(isoquinolin-7-yl)-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-ol [ No CAS ]
  • 2
  • [ 1092790-21-0 ]
  • [ 32138-69-5 ]
  • (3S,8R,9S,10R,13S,14S)-17-(isoquinoline-7-yl)-10,13-dimethyl-2,3.4,7,8,9,10,11,12,13,14,15-dodecahydro-1H-cyclopenta[a]phenanthren-3-ol [ No CAS ]
YieldReaction ConditionsOperation in experiment
80% With bis-triphenylphosphine-palladium(II) chloride; sodium carbonate; In 1,4-dioxane; at 90℃; for 1h; To a solution of (3A,8A,9S, 10/y 3S,I46)-i 7-iodo-iO,13~dimethyi- 2,3,4,7,8,9,10,1 1 ,12, 13,14, 15-dodecahydro-l H-cyclopenta[a]phenanthren-3-ol (50 mg, 0.13 mmol) in 1 ,4-dioxane (5 ml.) and Na2C03 2M aq. (0.32 rnL, 0.63 mmol) was added isoquinoiin- 7-ylboromc acid (25 mg, 0.14 mmol). The solution was thoroughly degassed and then Pd(PPh3)2.Cb. (5 mg, 0.006 mmol) was added and the mixture was heated to 90 C for 1 hour. The reaction was quenched with H2O and extracted with EtOAc (3 x 50 mL), dried over MgSQ4, and condensed to give a brown oil that was purified by reverse phase chromatography using a gradient of 1-90% MeCN in H2O to give the title compound (1) as a beige solid (40 mg, 80% yield). 41 NMR (500 MHz, DMSO-de): d 9.66 (s, 111).8.55 (d, J = 5Hz, ill).8.35 (s, ill).8.20 (d, ./ 61 lz.1H), 8.13 (s.2H), 6.39 (s, 1H), 5.33 (s, 1H), 3.28 (m, 1H), 3.17 (s, 1H), 2.38-1.99 (m, 6H), 1.81-1.52 (m, 8H), 1.45-1.33 (m, 3H), 1.15 (s.3H), 1.03 (s, 3H). MS m/z 400.39
80% With bis-triphenylphosphine-palladium(II) chloride; sodium carbonate; In 1,4-dioxane; water; at 90℃; for 1h; To a solution of (3S,8R,9S,10R,13S,14S)-17-iodo-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15-dodecahydro- 1H-cyclopenta[a]phenanthren-3-ol (50 mg, 0.13 mmol) in 1,4-dioxane (5 mL) and Na2CO3 2M aq. (0.32 mL, 0.63 mmol) was added isoquinolin-7-ylboronic acid (25 mg, 0.14 mmol). The solution was thoroughly degassed and then Pd(PPh3)2Cl2 (5 mg, 0.006 mmol) was added and the mixture was heated to 90 C for 1 hour. The reaction was quenched with ll20 and extracted with EtOAc (3 x 50 mL), dried over MgSQy and condensed to give a brown oil that was purified by reverse phase chromatography using a gradient of 1-90% MeCN in H2O to give the title compound (1) as a beige solid (40 mg, 80% yield). NMR (500 MHz, DMSQ-de): d 9.66 (s, 1H), 8.55 (d, J = 5Hz, 1H), 8.35 (s, 1H), 8.20 (d,./ 6Hz, 1H), 8.13 (s, 2H), 6.39 (s, 1H), 5.33 (s, 1H), 3.28 (m, 111).3.17 (s, 111).2.38-1.99 (m, 611).1.81-1.52 (m, 8H), 1.45-1.33 (m, 3H), 1.15 (s, 311).1.03 (s, 3H). MS m/z 400.39 [M+H]+..
 

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