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81703-94-8

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81703-94-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81703-94-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,7,0 and 3 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 81703-94:
(7*8)+(6*1)+(5*7)+(4*0)+(3*3)+(2*9)+(1*4)=128
128 % 10 = 8
So 81703-94-8 is a valid CAS Registry Number.
InChI:InChI=1/C9H14O4/c1-9(2)12-6-7(13-9)4-5-8(10)11-3/h4-5,7H,6H2,1-3H3/t7-/m0/s1

81703-94-8SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 19, 2017

Revision Date: Aug 19, 2017

1.Identification

1.1 GHS Product identifier

Product name methyl 3-(2,2-dimethyl-1,3-dioxolan-4-yl)prop-2-enoate

1.2 Other means of identification

Product number -
Other names methyl (2Z)-3-[(4S)-2,2-dimethyl-1,3-dioxolan-4-yl]acrylate

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:81703-94-8 SDS

81703-94-8Relevant articles and documents

Synthesis of γ-lactones by desymmetrization. A synthesis of (-)-muricatacin

Teresa Barros,Adilia Januario Charmier,Maycock, Christopher D.,Michaud, Thierry

, p. 396 - 399 (2009)

A short synthesis of the natural potent cytotoxic agent (-)-muricatacin 1 and related unsaturated lactones from a versatile common intermediate, dienedioate 2, derived from d-mannitol or tartaric acid, is described. The strategy depends upon the desymmetrization of 7 by dihydroxylation and elaboration of the hydroxy alkyl sidechain. A route to unsaturated lactones is also described using a cis selective Wittig reaction. Since the enantiomers of 2 are available from the corresponding tartaric acids, this method provides access to both enantiomers of the described compounds and a wide range of derivatives.

An approach to the carbon backbone of bielschowskysin, part 1: Photocyclization strategy

Himmelbauer, Martin,Farcet, Jean-Baptiste,Gagnepain, Julien,Mulzer, Johann

, p. 8214 - 8244 (2014/01/06)

Several macrocyclization reaction attempts of highly advanced precursors toward a total synthesis of marine diterpene bielschowskysin are disclosed. Biomimetic [2+2]-photocyclization reactions were applied to construct the cyclobutane core in these intermediates, which could be accessed along scalable high-yielding reaction sequences from cheap enantiopure starting-materials. Asymmetric syntheses of various highly functionalized intermediates toward the total synthesis of bielschowskysin (1) are described. In particular a biomimetic [2+2]-photocycloaddition reaction strategy, forming the cyclobutane core, was followed by various macrocyclization reactions attempts. Copyright

Synthesis of reblastatin, autolytimycin, and non-benzoquinone analogues: Potent inhibitors of heat shock protein 90

Wrona, Iwona E.,Gozman, Alexander,Taldone, Tony,Chiosis, Gabriela,Panek, James S.

scheme or table, p. 2820 - 2835 (2010/08/05)

A full account of an asymmetric synthesis of reblastatin (1) and the first total synthesis of autolytimycin (2) and related structural compounds is described. The syntheses expand the utility of a highly regio- and diastereoselective hydrometalation aldehyde addition sequence to assemble the fully functionalized ansa chain of the natural products. Also documented is an intramolecular copper-mediated amidation reaction to close the 19-membered macrolactams. The amidation reaction was also employed for the generation of structural derivatives (6-9) of phenolic ansamycins. Ansamycin natural products and selected structural analogues were evaluated in a competitive binding assay to breast cancer cell lysate and a cytotoxicity assay. Both reblastatin (1) and autolytimycin (2) were shown to bind the heat shock protein 90 with enhanced binding activity (~25 nM) than 17-allylamino-17-demethoxygeldanamycin (17-AAG, 4), a geldanamycin (3) derivative currently under evaluation for treatment of cancer (~100 nM).

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