Category: 3235-67-4

Application In Synthesis of 1-Piperidineacetic Acid. The reaction of aromatic heterocyclic molecules with protons is called protonation. Aromatic heterocycles are more basic than benzene due to the participation of heteroatoms. Compound: 1-Piperidineacetic Acid, is researched, Molecular C7H13NO2, CAS is 3235-67-4, about Glyoxal derivatives. III. Reaction of glyoxal with some secondary amines. Author is Kliegman, Jonathan M.; Barnes, Robert K..

Both 40 and 80% aqueous glyoxal reacted with morpholine in the cold to give 1,1,2,2-tetramorpholinoethane (I) which on vacuum distillation gave 1,1,2-trimorpholinoethane (II), but on boiling the reactions mixture gave 4-(morpholinoacetyl)morpholine (III). III was also obtained by treating II with moist Me2CHOH. I reacted with hydroxy aliphatics to give 1,2-dialkoxy-1,2-dimorpholinoethanes. Piperidine similarly gave piperidinoacetyl-piperidine. PhNHMe reacted with glyoxal to give 1-methyl-3-(N-methyl-N-phenylamino)indole.

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Reference:
Isoxazole – Wikipedia,
Isoxazole | C3H3NO – PubChem

Synthetic Route of C7H13NO2. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. Compound: 1-Piperidineacetic Acid, is researched, Molecular C7H13NO2, CAS is 3235-67-4, about On the pKa, distribution into organic solvents, Km and Vmax of piperidine N-derivatives and the cleavage of their N-C linkage by liver enzyme system. Author is Kimura, Katsuhiko; Nagaoka, Masao; Agatsuma, Hitoshi; Ohgiya, Shozaburo.

Values of pKa, Km, and Vmax, and percentage of nondissocd. type, and distribution coefficient in organic solvents were measured for N-derivatives of piperidine; N-Me- [626-67-5], N-(2-hydroxyethyl)- [3040-44-6], N-carboxymethyl- [3235-67-4], and N-cinnamyl- [70552-70-4] piperidines, 3-methyl-4-piperidinobutan-2-one (I) [42327-99-1], 1-phenyl-3-piperidinopropan-1-one [73-63-2], and 1,3-diphenyl-4-piperidinobutan-2-one [70552-69-1], and correlation between these values and N-C cleavage of these derivatives is discussed. In general, derivatives having smaller pKa and Km values and those having a larger percentage of nondissocd. type distribution coefficient, and Vmax values had a greater tendency for cleavage.

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Reference:
Isoxazole – Wikipedia,
Isoxazole | C3H3NO – PubChem

The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《The synthesis of esters of some amino acids having pharmacological importance. I. The synthesis of esters of piperidino carboxylic acids》. Authors are Matkovics, Bela; Foldeak, Sandor; Porszasz, Janos; Sipos, Gyorgy.The article about the compound:1-Piperidineacetic Acidcas:3235-67-4,SMILESS:OC(=O)CN1CCCCC1).Reference of 1-Piperidineacetic Acid. Through the article, more information about this compound (cas:3235-67-4) is conveyed.

RCH2CO2R’ (I), RCH2CH2CO2R’ (II), BzOCH2CH2R (III), and AcOCHMeCH2R (IV) were prepared I were prepared by condensing ClCH2CO2R’ with a secondary amine, II by boiling ClCH2CH2CO2R’ with the amine, and III by the reaction of an amino alc. with BzCl. The following I were obtained (R, R’, b.p.°/mm., m.p. of picrate, m.p. of HCl salt, and m.p. of methiodide are given): piperidino, Me, 69°/5, 115°, 214°, 163-4°; piperidino, Et, 68°/1, 122°, 117-17.5°, 160-60.3°; piperidino, Bu, 100-1°/4, 85°, -, 178°; piperidino, PhCH2, 134-5°/1, 137°, 133°, 91-6°; morpholino, Me, 77°/2, 143°, 150.5°, 147.5°; morpholino, Et, 86-7°/4, 163°, 181°, 132-3°; morpholino, Bu, 105.5-106°/3, -, 127-9°, 95-6°; morpholino, PhCH2, 164-5°/5, 143°, 149°, -; pyrrolidino, Me, 72-3°/8, 104°, -, 153°; pyrrolidino, Et, 59-60°/2, 119.5°, 133-3.5°, -; pyrrolidino, Bu, 81-2°/3, 109.5°, -, -; pyrrolidino, PhCH2, 134-5°/1, 159-60°, 139-40°, 156°. The following II were prepared (data as above): piperidino, Me, 72°/2, 164°, 189°, 147-8°; piperidino, Et, 102-3°/5, 131.5°, 169°, -; piperidino, Bu, 124-5°/6, 108-9°, 164.7°, -; piperidino, PhCH2, 149-50°/1, 113°, 193.5°, -; piperidino, Ph, 114-20°/3, -, 192-5°, -; piperidino, CPh3, 171°/1, -, 214°, -; morpholino, Me, 82°/2, 129°, 203°, 151°; morpholino, Et, 108°/6, 108°, 188-9°, -; morpholino, Bu, 131-2°/6, 150°, 173°, 115°; morpholino, PhCH2, 154°/1, 125°, 189-90°, -; pyrrolidino, Me, 76°/5, 147°, 128°, 166°; pyrrolidino, Et, 85°/6, 114°, 146°, -; pyrrolidino, Bu, 106-8°/5, 97°, 74-5°, 115°; pyrrolidino, PhCH2, 145-6°/3, 102°, 152°, 154°. IV (R =pyrrolidino) (V), b3 75°, picrate m. 111-12°, gave a hygroscopic HCl salt. III (R = piperidino) b2 141°; HCl salt m. 184°; methiodide m. 141.5°. The action of the compounds on blood pressure and on respiration was given. II (R = N-piperidino, R’ = CPh3) and V had strong antinicotinic action. The effect of the piperidino and pyrrolidino propionates was increased by quaternization.

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Reference:
Isoxazole – Wikipedia,
Isoxazole | C3H3NO – PubChem

In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Search for anticholinergic compounds. XLV. Structure and pharmacological activity of some esters of alkylamino acids: piperidino-, morpholino-, dicyclohexylamino-, phenylcyclohexylamino-, diphenylamino-, benzylphenylamino-, and benzylcyclohexylaminoacetic acids, published in 1985, which mentions a compound: 3235-67-4, Name is 1-Piperidineacetic Acid, Molecular C7H13NO2, Product Details of 3235-67-4.

The anticholinergic activity of a number of esters of acetic and aminoacetic acid derivatives was assessed as a function of the Schild index value. The highest activity was observed when piperidine was part of the alc. moiety and the acid moiety contained a branched substituent. With branched substituents in both the acid and the alc. moiety, activity decreased markedly. Aminoacetate esters were more active than the analogous acetate esters, the presence of 2 -O-C-C-N- groups in the mol. apparently being the reason behind this observation. 2-(1-Piperidinyl)ethyl diphenylaminoacetate  [102964-41-0] was more active than pipethanate  [4546-39-8].

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Reference:
Isoxazole – Wikipedia,
Isoxazole | C3H3NO – PubChem

The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Amino acids. I. Synthesis of some tertiary aminoacetic acids》. Authors are Remizov, A. L..The article about the compound:1-Piperidineacetic Acidcas:3235-67-4,SMILESS:OC(=O)CN1CCCCC1).Name: 1-Piperidineacetic Acid. Through the article, more information about this compound (cas:3235-67-4) is conveyed.

It was shown that reaction of ClCH2CO2H with R2NH depends on the basicity of the amine used and on steric factors. Benzylidenecyclohexylamine and MeI gave C6H11NHMe.HCl, m. 178-9°; free amine b62 73°. MeOCH2CH2Cl in MeOH-NH3 in 12 hrs. at 90-5° gave 5% MeOCH2CH2NH2, b. 92-5° (picrate m. 147-9°), 42% (MeOCH2CH2)2NH, b21 67-8°, n20D 1.4211 (picrate m. 112-14°; picrolonate m. 178-9°), and 19% (MeOCH2CH2)3N, b10 100-1°, 1.4330 (picrate m. 65-6°; picrolonate m. 119-20°). Shaking 0.06 mole ClCH2CO2H after neutralization with a paste of BaCO3 with 0.06 mole desired amine in H2O 4 hrs. followed by 20 hrs. at room temperature gave, after final heating on a steam bath to complete the reaction, RR’NCH2CO2H (NRR’ and m.p. given): Me2N, 179-81° (HCl salt m. 190-1°); Et2N, 135-6° (HCl salt m. 126-7°); piperidino, 208-11° (HCl salt m. 217-21°); morpholino, 162-3.5° (HCl salt m. 169-71°); C6H11NMe, 186-7° (HCl salt m. 166-7°); (MeOCH2CH2)2N, 48-9.5° (picrolonate m. 116-17°). These were accompanied by 2-20% RR’N(CH2CO2H)2Cl (same data given): NMe2, decomposed 208-9°; NEt2, decomposed 244-6°; MeNC6H11, decomposed 205-7°. For avoidance of formation of these salts, the secondary amines should be used in excess; alternatively, ClCH2CO2H was neutralized with aqueous NaOH and kept overnight with RR”NH, then heated on a steam bath.

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Reference:
Isoxazole – Wikipedia,
Isoxazole | C3H3NO – PubChem

Saleh, Maysaa M.; Laughton, Charles A.; Bradshaw, Tracey D.; Moody, Christopher J. published an article about the compound: 1-Piperidineacetic Acid( cas:3235-67-4,SMILESS:OC(=O)CN1CCCCC1 ).Reference of 1-Piperidineacetic Acid. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:3235-67-4) through the article.

Maintenance of telomeres – specialized complexes that protect the ends of chromosomes – is provided by the enzyme complex telomerase, which is a key factor that is activated in more than 80% of cancer cells, but absent in most normal cells. Targeting telomere maintenance mechanisms could potentially halt tumor growth across a broad spectrum of cancer types. Telomeric ends of chromosomes consist of noncoding repeat sequences of guanine-rich DNA. These G-rich ends can fold into structures called G-quadruplexes. Stabilization of G-quadruplexes by small binding mols. called G4 ligands can prevent telomerase enzyme from maintaining telomere integrity in cancer cells. G-quadruplexes can exist in other parts of the genome too, especially within promoter sequences of oncogenes, and also be interesting drug targets. Here, we describe the development of a new series of novel bis-triazoles, designed to stabilize G-quadruplex structures selectively as G4 ligands. FRET assays showed two compounds to be moderately effective G4 binders, with particular affinity for the quadruplex formed by the Hsp90a promoter sequence, and good selectivity for G-quadruplex DNA vs. duplex DNA. However, CD spectroscopy failed to provide any information about the folding topol. of the human telomeric G-quadruplex resulting from its interaction with one of the ligands. All the new ligands showed potent cell growth inhibitory properties against human colon and pancreatic cancer cell lines, as evidenced by the MTT assay; notably, they were more potent against cancer cells than in fetal lung fibroblasts. Docking studies were performed to rationalize the affinity of these ligands for binding to the telomeric parallel G-quadruplex DNA.

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Reference:
Isoxazole – Wikipedia,
Isoxazole | C3H3NO – PubChem

Application In Synthesis of 1-Piperidineacetic Acid. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: 1-Piperidineacetic Acid, is researched, Molecular C7H13NO2, CAS is 3235-67-4, about Conformational analysis of 1-piperidineacetic acid by X-ray, FTIR and ab initio calculations. Author is Dega-Szafran, Z.; Kosturkiewicz, Z.; Nowak, E.; Petryna, M.; Szafran, M..

The 1-piperidineacetic acid was synthesized as monohydrate and its structure was determined by x-ray diffraction methods. The crystals are orthorhombic, space group P212121, a 6.7693(7), b 10.816(1), c 11.452(1) A, Z = 4, R = 0.037. The acid mol. appears in the zwitterionic form with two equivalent carboxylic O atoms. The water mols. link carboxylic groups into infinite chains parallel to the z axis, by O-H···O H bonds of the lengths 2.85(2) and 2.75(2) A. The N+(1)-H proton forms bifurcated H bond intramol. with O(1) and intermol. with O(2′) of the length 2.795(2) and 2.775(3) A, resp. Five of the most stable conformers of 1-piperidineacetic acid and four of its monohydrate were analyzed by B3LYP/6-31G(d,p) calculations For anhydrous acid, NPA1 conformer with intramol. N···H-O H bond is the most stable. The structure of conformer NPA1 is similar to that of the most stable conformer of N,N-dimethylglycine. The zwitterionic form, ZPA1, is stabilized by the electrostatic interaction between the pos. charged N+H and neg. charged O atoms of COO- group. ZPA1 is less stable than NPA1 and the energy difference between them is 23.8 kcal/mol. In the case of monohydrate the difference is only 4.6 kcal/mol. Addition of water mol. increases the stability of the zwitterionic form of 1-piperidineacetic acid, ZPAW3.

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Reference:
Isoxazole – Wikipedia,
Isoxazole | C3H3NO – PubChem

Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: 1-Piperidineacetic Acid, is researched, Molecular C7H13NO2, CAS is 3235-67-4, about The hydrophobic side chain of oseltamivir influences type A subtype selectivity of neuraminidase inhibitors.Reference of 1-Piperidineacetic Acid.

Neuraminidase, which plays a critical role in the influenza virus life cycle, is a target for new therapeutic agents. The study of structure-activity relationships revealed that the C-5 position amino group of oseltamivir was pointed to 150-cavity of the neuraminidase in group 1. This cavity is important for selectivity of inhibitors against N1 vs. N2 NA. A serial of influenza neuraminidase inhibitors with the oseltamivir scaffold containing lipophilic side chains at the C-5 position have been synthesized and evaluated for their influenza neuraminidase inhibitory activity and selectivity. The results indicated that compound 13o (H5N1 IC50 = 0.1 ± 0.04 μm, H3N2 IC50 = 0.26 ± 0.18 μm) showed better inhibitory activity and selectivity against the group 1 neuraminidase. This study may provide a clue to design of better group 1 neuraminidase inhibitors.

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Reference:
Isoxazole – Wikipedia,
Isoxazole | C3H3NO – PubChem

SDS of cas: 3235-67-4. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: 1-Piperidineacetic Acid, is researched, Molecular C7H13NO2, CAS is 3235-67-4, about Conformational analysis of 1-piperidineacetic acid by X-ray, FTIR and ab initio calculations. Author is Dega-Szafran, Z.; Kosturkiewicz, Z.; Nowak, E.; Petryna, M.; Szafran, M..

The 1-piperidineacetic acid was synthesized as monohydrate and its structure was determined by x-ray diffraction methods. The crystals are orthorhombic, space group P212121, a 6.7693(7), b 10.816(1), c 11.452(1) A, Z = 4, R = 0.037. The acid mol. appears in the zwitterionic form with two equivalent carboxylic O atoms. The water mols. link carboxylic groups into infinite chains parallel to the z axis, by O-H···O H bonds of the lengths 2.85(2) and 2.75(2) A. The N+(1)-H proton forms bifurcated H bond intramol. with O(1) and intermol. with O(2′) of the length 2.795(2) and 2.775(3) A, resp. Five of the most stable conformers of 1-piperidineacetic acid and four of its monohydrate were analyzed by B3LYP/6-31G(d,p) calculations For anhydrous acid, NPA1 conformer with intramol. N···H-O H bond is the most stable. The structure of conformer NPA1 is similar to that of the most stable conformer of N,N-dimethylglycine. The zwitterionic form, ZPA1, is stabilized by the electrostatic interaction between the pos. charged N+H and neg. charged O atoms of COO- group. ZPA1 is less stable than NPA1 and the energy difference between them is 23.8 kcal/mol. In the case of monohydrate the difference is only 4.6 kcal/mol. Addition of water mol. increases the stability of the zwitterionic form of 1-piperidineacetic acid, ZPAW3.

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Reference:
Isoxazole – Wikipedia,
Isoxazole | C3H3NO – PubChem

Related Products of 3235-67-4. So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic. Compound: 1-Piperidineacetic Acid, is researched, Molecular C7H13NO2, CAS is 3235-67-4, about Two non-equivalent complexes of 1-piperidineacetic acid with 2,4-dinitrophenol studied by X-ray diffraction, PM3 and SAM1 methods and FTIR.

Crystal structure of the complex of 1-piperidineacetic acid (PAA) with 2,4-dinitrophenol (24DNP) has been solved by X-ray diffraction. The crystals are triclinic, space group Pi with a=7.178(1) A, b=11.746(2) A, c=18.118(4) A, α=84.42(3)°, β=83,34(3)°, γ=86.36(3)°, Z=4, R=0.0563. PAA forms with 24DNP two non-equivalent complexes through O···H-O hydrogen bonds of the different lengths (2.500(3) and 2.431(3) A). Each of these complexes forms a centrosym. dimer, denoted as A and B, in which two PAA moieties are joined by two N-H···O hydrogen bonds (2.875(3) and 2.797(3) A) around two different symmetry centers. The C-H···O contacts consolidate the structure in the unit cell. The structures optimized by the PM3 and SAM1 methods also reproduce two dimers A and B whose energies, dipole moments and their geometries are slightly different. The FTIR spectrum confirms the presence of the N-H···O and O-H···O hydrogen bonds.

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Reference:
Isoxazole – Wikipedia,
Isoxazole | C3H3NO – PubChem