Welcome to LookChem.com Sign In|Join Free

CAS

  • or
2-Piperidinecarboxylicacid,4-hydroxy-,(2R,4R)-(9CI) is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

189385-64-6

Post Buying Request

189385-64-6 Suppliers

Recommended suppliersmore

  • Product
  • FOB Price
  • Min.Order
  • Supply Ability
  • Supplier
  • Contact Supplier

189385-64-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 189385-64-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,9,3,8 and 5 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 189385-64:
(8*1)+(7*8)+(6*9)+(5*3)+(4*8)+(3*5)+(2*6)+(1*4)=196
196 % 10 = 6
So 189385-64-6 is a valid CAS Registry Number.

189385-64-6Relevant articles and documents

CERAMIDE GALACTOSYLTRANSFERASE INHIBITORS FOR THE TREATMENT OF DISEASE

-

Paragraph 00293-00294; 00299; 00693-00694; 00698; 00724, (2019/06/11)

Described herein are compounds, methods of making such compounds, pharmaceutical compositions and medicaments containing such compounds, and methods of using such compounds to treat or prevent diseases or disorders associated with the enzyme ceramide galactosyltransferase (CGT), such as, for example, lysosomal storage diseases. Examples of lysosomal storage diseases include, for example, Krabbe disease and Metachromatic Leukodystrophy.

TUBULYSIN ANALOGUES AS ANTICANCER AGENTS AND PAYLOADS FOR ANTIBODY-DRUG CONJUGATES AND METHODS OF TREATMENT THEREWITH

-

Page/Page column 146, (2019/06/17)

In one aspect, the present disclosure provides tubulysin analogs of the formula (I) wherein the variables are as defined herein. In another aspect, the present disclosure also provides methods of preparing the compounds disclosed herein. In another aspect

Improved Total Synthesis of Tubulysins and Design, Synthesis, and Biological Evaluation of New Tubulysins with Highly Potent Cytotoxicities against Cancer Cells as Potential Payloads for Antibody-Drug Conjugates

Nicolaou,Erande, Rohan D.,Yin, Jun,Vourloumis, Dionisios,Aujay, Monette,Sandoval, Joseph,Munneke, Stefan,Gavrilyuk, Julia

supporting information, p. 3690 - 3711 (2018/03/21)

Improved, streamlined total syntheses of natural tubulysins such as V (Tb45) and U (Tb46) and pretubulysin D (PTb-D43), and their application to the synthesis of designed tubulysin analogues (Tb44, PTb-D42, PTb-D47-PTb-D49, and Tb50-Tb120), are described.

2-Keto-3-Deoxy-l-Rhamnonate Aldolase (YfaU) as Catalyst in Aldol Additions of Pyruvate to Amino Aldehyde Derivatives

Hernández, Karel,Gómez, Ariadna,Joglar, Jesús,Bujons, Jordi,Parella, Teodor,Clapés, Pere

, p. 2090 - 2100 (2017/06/23)

4-Hydroxy-2-keto acid derivatives are versatile building blocks for the synthesis of amino acids, hydroxy carboxylic acids and chiral aldehydes. Pyruvate aldolases are privileged catalysts for a straightforward access to this class of keto acid compounds. In this work, a Class II pyruvate aldolase from Escherichia coli K-12, 2-keto-3-deoxy-l-rhamnonate aldolase (YfaU), was evaluated for the synthesis of amino acid derivatives of proline, pipecolic acid, and pyrrolizidine-3-carboxylic acid. The aldol addition of pyruvate to N-protected amino aldehydes was the key enzymatic aldol addition step followed by catalytic intramolecular reductive amination. The corresponding N-Cbz-amino-4-hydroxy-2-keto acid (Cbz=benzyloxycarbonyl) precursors were obtained in 51–95% isolated yields and enantioselectivity ratios from 26:74 to 95:5, with chiral α-substituted N-Cbz-amino aldehydes. (S)-N-Cbz-amino aldehydes gave aldol adducts with preferentially (R)-configuration at the newly formed stereocenter, whereas the contrary is true for (R)-N-Cbz-amino aldehydes. Addition reactions to achiral amino aldehydes rendered racemic aldol adducts. Molecular models of the pre-reaction ternary complexes YfaU-pyruvate enolate-acceptor aldehyde were constructed to explain the observed stereochemical outcome of the reactions. Catalytic reductive amination of the aldol adducts yielded 4-hydroxy-2-pipecolic acid, and unprecedented C-5 substituted 4-hydroxyproline and pyrrolizidine-3-carboxylic acid derivatives. (Figure presented.).

AN ENANTIOSELECTIVE PROCESS FOR THE SYNTHESIS OF (2S,4R)-4-HYDROXYPIPECOLIC ACID

-

Page/Page column 24; 25, (2016/08/23)

The present invention relates to an improved process for synthesis of 4-hydroxy pipecolic acid. The present invention relates to an improved enantioselective process for the synthesis of (2S,4R)-4-hydroxypipecolic acid via Co(III) (salen)-catalyzed two stereocentered Hydrolytic Kinetic Resolution (HKR) of racemic 1,3-azido epoxide with good yields and high optical purity without any protecting groups. 10 31

Betaines and related ammonium compounds in chestnut (Castanea sativa Mill.)

Servillo, Luigi,Giovane, Alfonso,Casale, Rosario,Balestrieri, Maria Luisa,Cautela, Domenico,Paolucci, Marina,Siano, Francesco,Volpe, Maria Grazia,Castaldo, Domenico

, p. 1301 - 1309 (2015/11/09)

Chestnut fruits, being poor of simple sugars and consisting mainly of fibers and starch, are among the constituents of Mediterranean diet. While numerous studies report on content of proteins and amino acids in chestnut, no one has appeared so far on betaines, an important class of nitrogen compounds ubiquitous in plants for their protective action in response to abiotic stress. In this study, we analyzed by HPLC-ESI-tandem mass spectrometry, in fruits and flours of varieties of chestnut cultivated in Italy, the composition of betaines and ammonium compounds intermediates of their biosynthesis. Besides the parent amino acids, the compounds quantified were choline, glycerophosphocholine, phosphocholine, glycine betaine, N-methylproline, proline betaine (stachydrine), β-alanine betaine, 4-guanidinobutyric acid, trigonelline, N,N,N-trimethyllysine. Interestingly, some uncommon derivatives of pipecolic acid, such as N-methylpipecolic acid, 4-hydroxypipecolic acid and 4-hydroxy-N-methylpipecolic acid were identified for the first time in chestnut samples and characterized by MSn tandem mass spectrometry.

Ulleungamides A and B, Modified α,β-Dehydropipecolic Acid Containing Cyclic Depsipeptides from Streptomyces sp. KCB13F003

Son, Sangkeun,Ko, Sung-Kyun,Jang, Mina,Lee, Jae Kyoung,Ryoo, In-Ja,Lee, Jung-Sook,Lee, Kyung Ho,Soung, Nak-Kyun,Oh, Hyuncheol,Hong, Young-Soo,Kim, Bo Yeon,Jang, Jae-Hyuk,Ahn, Jong Seog

supporting information, p. 4046 - 4049 (2015/09/01)

Two novel cyclic depsipeptides, ulleungamides A (1) and B (2), were isolated from cultures of terrestrial Streptomyces sp. Their structures were determined by analyses of spectroscopic data and various chemical transformations, including modified Mosher's method, advanced Marfey's method, PGME, GITC derivatizations, and Snatzke's method. Ulleungamides were determined to be a new class of peptides bearing unprecedented units, such as 5-hydroxy-6-methyl-2,3-dehydropipecolic acid, 4,5-dihydroxy-6-methyl-2,3-dehydropipecolic acid, and amino-linked 2-isopropylsuccinic acid. Ulleungamide A displayed growth inhibitory activity against Staphylococcus aureus and Salmonella typhimurium without cytotoxicity.

Substrate specificity and stereoselectivity of two Sulfolobus 2-keto-3-deoxygluconate aldolases towards azido-substituted aldehydes

Schurink, Marloes,Wolterink-Van Loo, Suzanne,Van Der Oost, John,Sonke, Theo,Franssen, Maurice C. R.

, p. 1073 - 1081 (2014/05/06)

The 2-keto-3-deoxygluconate aldolases (KDGAs) isolated from Sulfolobus species convert pyruvate and glyceraldehyde reversibly into 2-keto-3-deoxygluconate and -galactonate. As a result of their high thermostability and activity on nonphosphorylated substrates, KDGA enzymes have potential as biocatalysts for the production of building blocks for fine chemical and pharmaceutical applications. Up to now, wild-type enzymes have only shown moderate stereocontrol for their natural reaction. However, if a set of azido-functionalized aldehydes were applied as alternative acceptors in the reaction with pyruvate, the stereoselectivity was strongly increased to give enantiomeric or diastereomeric excess values up to 97 %. The Sulfolobus acidocaldarius KDGA displayed a higher stereoselectivity than Sulfolobus solfataricus KDGA for all tested reactions. The azido-containing products are useful chiral intermediates in the synthesis of nitrogen heterocycles. Taming the wild-type: Two 2-keto-3-deoxygluconate aldolases from Sulfolobus species readily couple azido-substituted aldehydes to pyruvate in a stereoselective manner. The resulting compounds yield chiral nitrogen heterocycles upon reduction.

A concise and diastereoselective synthesis of piperidine and indolizidine alkaloids via aza-Prins cyclization

Reddy, Basi V. Subba,Chaya, Dudhmal N.,Yadav, Jhillu S.,Gree, Rene

experimental part, p. 297 - 303 (2012/03/26)

The synthesis of 2-substituted and 2,4-disubstituted piperidine alkaloids such as (±)-coniine, (±)-hydroxypipecolic acid, (±)-pipecolic acid, (±)-coniceine, and (±)-4-hydroxy-2- hydroxy-methyl piperidine have been accomplished in a highly diastereo-selective manner by employing aza-Prins cyclization as a key step to construct the piperidine core of these alkaloids. Georg Thieme Verlag Stuttgart · New York.

Validation of high-affinity binding sites for succinic acid through distinguishable binding of gamma-hydroxybutyric acid receptor-specific NCS 382 antipodes

Molnar, Tuende,Visy, Julia,Simon, Agnes,Moldvai, Istvan,Temesvari-Major, Eszter,Doernyei, Gabor,Fekete, Erzsebet Kutine,Kardos, Julianna

supporting information; experimental part, p. 6290 - 6292 (2009/07/18)

Gamma-hydroxybutyric acid (GHB) binding to multiple sites for the tricarboxylic acid cycle intermediate succinic acid (SUC) has been disclosed recently. In order to better characterize these targets, distinguishable binding of GHB receptor-specific NCS 38

Post a RFQ

Enter 15 to 2000 letters.Word count: 0 letters

Attach files(File Format: Jpeg, Jpg, Gif, Png, PDF, PPT, Zip, Rar,Word or Excel Maximum File Size: 3MB)

1

What can I do for you?
Get Best Price

Get Best Price for 189385-64-6