72486-93-2

Basic information

• Product Name: (1E 3Z)-1-METHOXY-2-METHYL-3-(TRIMETHYL&
• Synonyms: (1E 3Z)-1-METHOXY-2-METHYL-3-(TRIMETHYL&;TRANS-1-METHOXY-2-METHYL-3-(TRIMETHYLSI&;(1e,3z)-1-methoxy-2-methyl-3-(trimethylsilyloxy)-1,3-pentadiene;(1e,3z)-1-methoxy-2-methyl-3-[(trimethylsilyl)oxy]-penta-1,3-diene;[(1-(2-Methoxy-1-methylvinyl)propenyloxy]trimethylsilan, (1E,3Z)-1-Methoxy-2-methyl-3-[(trimethylsilyl)oxy]-penta-1,3-diene;[(1-(2-Methoxy-1-methylvinyl)propenyloxy]trimethylsilan;1-Methoxy-2-methyl-3-(trimethylsilyloxy)-1,3-pentadiene
• CAS NO: 72486-93-2
• Molecular Formula: C₁₀H₂₀O₂Si
• Molecular Weight: 200.352
• Product Categories: Building Blocks;Chemical Synthesis;Enol Ethers;Organic Building Blocks;Oxygen Compounds
• Mol File: 72486-93-2.mol
• Article Data: 5

Chemical Properties

• Boiling Point: 65 °C6 mm Hg(lit.)
• Flash Point: 178 °F
• Appearance: /
• Density: 0.899 g/mL at 25 °C(lit.)
• Vapor Pressure: 0.082mmHg at 25°C
• Refractive Index: n20/D 1.4650(lit.)
• Storage Temp.: 2-8°C
• CAS DataBase Reference: (1E 3Z)-1-METHOXY-2-METHYL-3-(TRIMETHYL&(CAS DataBase Reference)
• NIST Chemistry Reference: (1E 3Z)-1-METHOXY-2-METHYL-3-(TRIMETHYL&(72486-93-2)
• EPA Substance Registry System: (1E 3Z)-1-METHOXY-2-METHYL-3-(TRIMETHYL&(72486-93-2)

Safety Data

• Hazard Codes: Xn
• Statements: 22
• WGK Germany: 3
• Hazardous Substances Data: 72486-93-2(Hazardous Substances Data)

Usage

Description

(1E, 3Z)-1-Methoxy-2-methyl-3-(trimethylsilyloxy)-1,3-pentadiene, also known as Danishefsky diene, is an organic compound with a unique structure that features a diene system. It is widely used in the synthesis of various complex molecules and has significant applications in the pharmaceutical industry due to its versatile reactivity.

Uses

1. Used in Pharmaceutical Industry:
(1E, 3Z)-1-Methoxy-2-methyl-3-(trimethylsilyloxy)-1,3-pentadiene is used as a reactant for the preparation of migrastatin analogs, which serve as cell migration inhibitors. These analogs are crucial in the treatment of tumor metastasis, as they help prevent the spread of cancer cells to other parts of the body.
2. Used in Organic Synthesis:
(1E, 3Z)-1-Methoxy-2-methyl-3-(trimethylsilyloxy)-1,3-pentadiene is used as a reactant for the preparation of dihydropyridinones through chlorosilane-promoted aza-Diels-Alder addition. Dihydropyridinones are important intermediates in the synthesis of various pharmaceuticals and agrochemicals.
3. Used in the Synthesis of Non-Proteinogenic Amino Acids:
(1E, 3Z)-1-Methoxy-2-methyl-3-(trimethylsilyloxy)-1,3-pentadiene is used as a reactant for the synthesis of non-proteinogenic amino esters via stereoselective Lewis acid-catalyzed aza-Diels-Alder cycloaddition with conjugated (cyclo)dienes. These non-proteinogenic amino acids are valuable building blocks in the development of novel bioactive compounds and pharmaceuticals.

InChI:InChI=1/C10H20O2Si/c1-7-10(9(2)8-11-3)12-13(4,5)6/h7-8H,1-6H3/b9-8+,10-7-

Upstream product

• 96-22-0 pentan-3-one 
• 74074-59-2 1-methoxy-2-methyl-1-penten-3-one 
• 51735-75-2 trimethylsilyl trifluoromethanesulfonate 
• 27607-77-8 trimethylsilyl trifluoromethanesulfonate 
• 50421-81-3 1-hydroxy-2-methyl-1-penten-3-one 
• 56279-35-7 (E)-1-methoxy-2-methyl-1-penten-3-one 
• 75-77-4 chloro-trimethyl-silane 

Downstream Products

• 72486-86-3 2,4,6-Trimethyl-4-formylcyclohex-2-en-1-on 
• 22558-32-3 4-Hydroxy-3,5-dimethyl-phthalsaeure-dimethylester 
• 85613-11-2 ((2R,3R,6S)-6-Methoxy-3,5-dimethyl-2-phenyl-3,6-dihydro-2H-pyran-4-yloxy)-trimethyl-silane 
• 83399-57-9 ((2R,3R)-6-Methoxy-3,5-dimethyl-2-phenyl-3,6-dihydro-2H-pyran-4-yloxy)-trimethyl-silane 
• 83378-98-7 (2S*,3S*)-2-phenyl-3,5-dimethyl-2,3-dihydro-4H-pyran-4-one 
• 83379-03-7 (2S*,3R*)-2-phenyl-3,5-dimethyl-2,3-dihydro-4H-pyran-4-one 
• 91926-92-0 (E)-(4S,5R)-5-Hydroxy-1-methoxy-2,4-dimethyl-5-phenyl-pent-1-en-3-one 
• 91926-91-9 (E)-(4S,5S)-5-Hydroxy-1-methoxy-2,4-dimethyl-5-phenyl-pent-1-en-3-one 
• 88198-71-4 (2R,3R)-3,5-dimethyl-2-phenyl-2,3-dihydro-4H-pyran-4-one 
• 111900-65-3 (2S,3S)-3,5-dimethyl-2-phenyl-2,3-dihydro-4H-pyran-4-one 
• 111900-66-4 3,5-dimethyl-2-phenyl-2,3-dihydro-4H-pyran-4-one 
• 106734-75-2 <2S<2α(1R*,2S*),3β>>-2-<4-(1,3-dioxolan-2yl)-1-methyl-2-<(phenylmethoxy)methoxy>butyl>-2,3-dihydro-3,5-dimethyl-4H-pyran-4-one 
• 89363-68-8 (2R*,3R*,1'R*)-2-<(1'-benzyloxy)propyl>-3,5-dimethyl-2,3-dihydro-4H-pyran-4-one 
• 89378-00-7 (2S*,1'S*,3R*)-2-<(1'-benzyloxy)propyl>-3,5-dimethyl-2,3-dihydro-4H-pyran-4-one 

Relevant articles and documents

Stepwise bond formation in photochemical and thermal Diels-Alder reactions of C60 with Danishefsky's dienes

Mechanisms of both the photochemical and thermal Diels-Alder reactions of C60 with Danishefsky's dienes are studied on the basis of product stereochemistry, kinetics, and the detection of radical intermediates. A stereochemically defined (1E,3Z)-1-methoxy-2-methyl-3-[(trimethylsilyl)oxy]-penta-1,3-diene (1a) is used as a stereochemical probe in the Diels-Alder reactions with C60. The major Diels-Alder product is trans-adduct (3) rather than cis-adduct (4) in both the photochemical and thermal Diels-Alder reactions. Such stereochemistry indicates that the Diels-Alder reactions proceed by a stepwise mechanism rather than a concerted mechanism. The transient spectra of C60?- formed in photoinduced electron transfer from 1a to the triplet excited state of C60 (3C60*) have been detected successfully in laser flash photolysis of the 1a-C60 system. The observed rate constants determined from the dependence of the quantum yields on the concentrations of Danishefsky's dienes agree well with those for the photoinduced electron transfer from Danishefsky's dienes to 3C60*. Such an agreement together with the formation of trans-adduct (3) indicates that the photochemical Diels-Alder reaction proceeds via stepwise bond formation in the radical ion pair produced in the photoinduced electron transfer from Danishefsky's dienes to 3C60*. On the other hand, the rate constants for the thermal Diels-Alder reactions of Danishefsky's dienes are 1016 times larger than those expected for outer-sphere electron transfer from Danishefsky's dienes to C60. Thus, a strongly unsymmetrical orbital interaction is required for the thermal Diels-Alder reaction to yield trans-adduct (3) which would not be produced by a concerted pathway.

MIGRASTATIN ANALOG COMPOSITIONS AND USES THEREOF

In one aspect, the present invention provides pharmaceutical compositions comprising a therapeutically effective amount of a compound of general formula (I), wherein R1-R6, Ra-RC, Q, Y1, Y2 and n are as defined herein, whereby the composition is formulated for administration to a subject at a dosage between about 0.1 mg/kg to about 50 mg/kg of body weight. In another aspect, the present invention provides a method for treating breast tumor metastasis in a subject comprising administering to a subject in need thereof a therapeutically effective amount of the inventive composition described directly above and a pharmaceutically acceptable carrier, adjuvant or vehicle.

(E,Z)-1-methoxy-2-methyl-3-(trimethylsiloxy)-1,3-pentadiene

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