Category: 61302-99-6

SDS of cas: 61302-99-6. 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: D-Alanine methylamide hydrochloride, is researched, Molecular C4H11ClN2O, CAS is 61302-99-6, about New Amino Acids for the Topographical Control of Peptide Conformation: Synthesis of All the Isomers of α,β-Dimethylphenylalanine and α,β-Dimethyl-1,2,3,4-tetrahydroisoquinoline-3-carboxylic Acid of High Optical Purity. Author is Kazmierski, Wieslaw M.; Urbanczyk-Lipkowska, Zofia; Hruby, Victor J..

The synthesis of all four diastereoisomers of α,β-dimethylphenylalanine, H2NCMe(CHMePh)CO2H, (4) as well as those of α,β-dimethyl-1,2,3,4,-tetrahydroisoquinoline-3-carboxylic acid (I and II) have been accomplished in high yield and high optical purity. Mol. mechanics calculations on the Nα-acetyl and N-methylcarboxamide derivatives of (3R,4R)-I and (3R,4S)-II indicate large and moderate energy stabilization for the gauche(-) but not the gauche(+) side-chain conformers of (3R,4S)-II and (3R,4R)-I, resp. By symmetry rules, the same holds for (3S,4R)-II and (3S,4S)-I, resp. Thus, these amino acids are potential building blocks for the topog. design of peptides (W. M. Kazmierski et al., 1991) by providing acylated 1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid derivatives in which a gauche(-) and not a gauche(+) side-chain conformation is energetically more stable for the L-amino acid. Synthetic details and implications of these new amino acids for peptide and protein design are discussed.

The article 《New Amino Acids for the Topographical Control of Peptide Conformation: Synthesis of All the Isomers of α,β-Dimethylphenylalanine and α,β-Dimethyl-1,2,3,4-tetrahydroisoquinoline-3-carboxylic Acid of High Optical Purity》 also mentions many details about this compound(61302-99-6)SDS of cas: 61302-99-6, you can pay attention to it, because details determine success or failure

Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Chemical & Pharmaceutical Bulletin called Synthesis of stereoisomeric alanine containing peptide derivatives, Author is Okada, Yoshio; Tani, Shohei; Yawatari, Yuko; Yagyu, Masami, which mentions a compound: 61302-99-6, SMILESS is N[C@H](C)C(NC)=O.[H]Cl, Molecular C4H11ClN2O, Recommanded Product: D-Alanine methylamide hydrochloride.

D-alanine derivatives and their stereoisomers and D-alanyl-D-alanine derivatives and their stereoisomers (R1-Ala-R2, R1-Ala-Ala-R2: R1 = PhCH2O2C, H; R2 = NHNH2, NHCH3, NHCH2CH2OH) were synthesized. All compounds obtained did not show antibacterial activity against Staphylococcus aureus, Sarcina lutea, Pseudomonas aeruginosa and Escherichia coli.

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Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, International Journal of Peptide & Protein Research called Peptide models for β-turns. A circular dichroism study, Author is Crisma, M.; Fasman, G. D.; Balaram, H.; Balaram, P., which mentions a compound: 61302-99-6, SMILESS is N[C@H](C)C(NC)=O.[H]Cl, Molecular C4H11ClN2O, Computed Properties of C4H11ClN2O.

The CD spectra of β-turn model peptides PhCH2O2C-Aib-Pro-Aib-Pro-OMe (I, Aib = NHCMe2CO), Piv-Pro-Aib-NHMe (II, Piv = Me3CCO), Piv-Pro-D-Ala-NHMe (III), and Piv-Pro-Val-NHMe (IV) were examined in methanol, hexafluoroisopropanol, and cyclohexane. Type I and Type II β-turns were observed for I and II, resp., in the solid state, while the Pro-D-Ala sequence adopts a Type II β-turn in a related peptide crystal structure. A class C spectrum was observed for I in various solvents, suggesting a variant of a Type I (III) structure. The Type II β-turn is characterized by a CD spectrum having two pos. CD bands at ∼230 nm and ∼202 nm, a feature observed in III in cyclohexane and methanol and for II in methanol. II exhibits solvent-dependent CD spectra, which may be rationalized by considering Type II, III and V reverse turn structures. IV adopts non-β-turn structures in polar solvents, but exhibits a class B spectrum in cyclohexane suggesting a population of Type I β-turns.

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Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – 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: D-Alanine methylamide hydrochloride, is researched, Molecular C4H11ClN2O, CAS is 61302-99-6, about Peptide models for β-turns. A circular dichroism study.Electric Literature of C4H11ClN2O.

The CD spectra of β-turn model peptides PhCH2O2C-Aib-Pro-Aib-Pro-OMe (I, Aib = NHCMe2CO), Piv-Pro-Aib-NHMe (II, Piv = Me3CCO), Piv-Pro-D-Ala-NHMe (III), and Piv-Pro-Val-NHMe (IV) were examined in methanol, hexafluoroisopropanol, and cyclohexane. Type I and Type II β-turns were observed for I and II, resp., in the solid state, while the Pro-D-Ala sequence adopts a Type II β-turn in a related peptide crystal structure. A class C spectrum was observed for I in various solvents, suggesting a variant of a Type I (III) structure. The Type II β-turn is characterized by a CD spectrum having two pos. CD bands at ∼230 nm and ∼202 nm, a feature observed in III in cyclohexane and methanol and for II in methanol. II exhibits solvent-dependent CD spectra, which may be rationalized by considering Type II, III and V reverse turn structures. IV adopts non-β-turn structures in polar solvents, but exhibits a class B spectrum in cyclohexane suggesting a population of Type I β-turns.

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Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: D-Alanine methylamide hydrochloride( cas:61302-99-6 ) is researched.Application In Synthesis of D-Alanine methylamide hydrochloride.Zhang, Xiaofei; Ligny, Romain; Chewchanwuttiwong, Sopa; Hadade, Rawan; Laurent, Mathieu Y.; Martel, Arnaud; Jacquemmoz, Corentin; Lhoste, Jerome; Bricaud, Sullivan; Py, Sandrine; Dujardin, Gilles published the article 《δ-Valerolactamic quaternary amino acid derivatives: Enantiodivergent synthesis and evidence for stereodifferentiated β-turn-inducing properties》 about this compound( cas:61302-99-6 ) in Journal of Organic Chemistry. Keywords: valerolactamic quaternary amino acid enantiodivergent synthesis peptidomimetic beta turn; pseudopeptide synthesis conformer steric hindrance crystal mol structure DFT; isoxazolidine pentenoyl protection reductive ring opening reduction oxidation; reductive amination cyclization peptide coupling. Let’s learn more about this compound (cas:61302-99-6).

Enantiopure (R) and (S) cyclic α,α-disubstituted amino acid derivatives displaying a δ-valerolactam side chain were prepared from a common isoxazolidine precursor. The (R)-configured δ-valerolactam (I) was converted into diastereoisomeric pseudopeptides to investigate its ability to induce secondary structures in peptidomimetics. Conformational studies of these pseudopeptides were carried out in the solid state (X-ray diffraction), in solution (NMR analyses), and in silico (computer-aided conformational anal.), which demonstrated that such quaternary amino acids induce β-turn conformations stable enough to be retained in polar media (DMSO). Incorporation of this new type of α,α-disubstituted amino acid into a representative pseudopeptidic sequence by N- then C-elongation and N-debenzylation is also described herein and could serve for the synthesis of various structured peptidomimetics.

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Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: D-Alanine methylamide hydrochloride, is researched, Molecular C4H11ClN2O, CAS is 61302-99-6, about New Amino Acids for the Topographical Control of Peptide Conformation: Synthesis of All the Isomers of α,β-Dimethylphenylalanine and α,β-Dimethyl-1,2,3,4-tetrahydroisoquinoline-3-carboxylic Acid of High Optical Purity, the main research direction is stereoisomer dimethylphenylalanine asym synthesis conformation; phenylalanine dimethyl stereoisomer preparation conformation; isoquinolinecarboxylic acid dimethyltetrahydro stereoisomer conformation.Safety of D-Alanine methylamide hydrochloride.

The synthesis of all four diastereoisomers of α,β-dimethylphenylalanine, H2NCMe(CHMePh)CO2H, (4) as well as those of α,β-dimethyl-1,2,3,4,-tetrahydroisoquinoline-3-carboxylic acid (I and II) have been accomplished in high yield and high optical purity. Mol. mechanics calculations on the Nα-acetyl and N-methylcarboxamide derivatives of (3R,4R)-I and (3R,4S)-II indicate large and moderate energy stabilization for the gauche(-) but not the gauche(+) side-chain conformers of (3R,4S)-II and (3R,4R)-I, resp. By symmetry rules, the same holds for (3S,4R)-II and (3S,4S)-I, resp. Thus, these amino acids are potential building blocks for the topog. design of peptides (W. M. Kazmierski et al., 1991) by providing acylated 1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid derivatives in which a gauche(-) and not a gauche(+) side-chain conformation is energetically more stable for the L-amino acid. Synthetic details and implications of these new amino acids for peptide and protein design are discussed.

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Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – 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: D-Alanine methylamide hydrochloride, is researched, Molecular C4H11ClN2O, CAS is 61302-99-6, about New Amino Acids for the Topographical Control of Peptide Conformation: Synthesis of All the Isomers of α,β-Dimethylphenylalanine and α,β-Dimethyl-1,2,3,4-tetrahydroisoquinoline-3-carboxylic Acid of High Optical Purity.Name: D-Alanine methylamide hydrochloride.

The synthesis of all four diastereoisomers of α,β-dimethylphenylalanine, H2NCMe(CHMePh)CO2H, (4) as well as those of α,β-dimethyl-1,2,3,4,-tetrahydroisoquinoline-3-carboxylic acid (I and II) have been accomplished in high yield and high optical purity. Mol. mechanics calculations on the Nα-acetyl and N-methylcarboxamide derivatives of (3R,4R)-I and (3R,4S)-II indicate large and moderate energy stabilization for the gauche(-) but not the gauche(+) side-chain conformers of (3R,4S)-II and (3R,4R)-I, resp. By symmetry rules, the same holds for (3S,4R)-II and (3S,4S)-I, resp. Thus, these amino acids are potential building blocks for the topog. design of peptides (W. M. Kazmierski et al., 1991) by providing acylated 1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid derivatives in which a gauche(-) and not a gauche(+) side-chain conformation is energetically more stable for the L-amino acid. Synthetic details and implications of these new amino acids for peptide and protein design are discussed.

This literature about this compound(61302-99-6)Name: D-Alanine methylamide hydrochloridehas given us a lot of inspiration, and I hope that the research on this compound(D-Alanine methylamide hydrochloride) can be further advanced. Maybe we can get more compounds in a similar way.

Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Article, Research Support, Non-U.S. Gov’t, Journal of Organic Chemistry called δ-Valerolactamic quaternary amino acid derivatives: Enantiodivergent synthesis and evidence for stereodifferentiated β-turn-inducing properties, Author is Zhang, Xiaofei; Ligny, Romain; Chewchanwuttiwong, Sopa; Hadade, Rawan; Laurent, Mathieu Y.; Martel, Arnaud; Jacquemmoz, Corentin; Lhoste, Jerome; Bricaud, Sullivan; Py, Sandrine; Dujardin, Gilles, which mentions a compound: 61302-99-6, SMILESS is N[C@H](C)C(NC)=O.[H]Cl, Molecular C4H11ClN2O, Name: D-Alanine methylamide hydrochloride.

Enantiopure (R) and (S) cyclic α,α-disubstituted amino acid derivatives displaying a δ-valerolactam side chain were prepared from a common isoxazolidine precursor. The (R)-configured δ-valerolactam (I) was converted into diastereoisomeric pseudopeptides to investigate its ability to induce secondary structures in peptidomimetics. Conformational studies of these pseudopeptides were carried out in the solid state (X-ray diffraction), in solution (NMR analyses), and in silico (computer-aided conformational anal.), which demonstrated that such quaternary amino acids induce β-turn conformations stable enough to be retained in polar media (DMSO). Incorporation of this new type of α,α-disubstituted amino acid into a representative pseudopeptidic sequence by N- then C-elongation and N-debenzylation is also described herein and could serve for the synthesis of various structured peptidomimetics.

This literature about this compound(61302-99-6)Name: D-Alanine methylamide hydrochloridehas given us a lot of inspiration, and I hope that the research on this compound(D-Alanine methylamide hydrochloride) can be further advanced. Maybe we can get more compounds in a similar way.

Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Article, Research Support, Non-U.S. Gov’t, Journal of Organic Chemistry called δ-Valerolactamic quaternary amino acid derivatives: Enantiodivergent synthesis and evidence for stereodifferentiated β-turn-inducing properties, Author is Zhang, Xiaofei; Ligny, Romain; Chewchanwuttiwong, Sopa; Hadade, Rawan; Laurent, Mathieu Y.; Martel, Arnaud; Jacquemmoz, Corentin; Lhoste, Jerome; Bricaud, Sullivan; Py, Sandrine; Dujardin, Gilles, which mentions a compound: 61302-99-6, SMILESS is N[C@H](C)C(NC)=O.[H]Cl, Molecular C4H11ClN2O, Name: D-Alanine methylamide hydrochloride.

Enantiopure (R) and (S) cyclic α,α-disubstituted amino acid derivatives displaying a δ-valerolactam side chain were prepared from a common isoxazolidine precursor. The (R)-configured δ-valerolactam (I) was converted into diastereoisomeric pseudopeptides to investigate its ability to induce secondary structures in peptidomimetics. Conformational studies of these pseudopeptides were carried out in the solid state (X-ray diffraction), in solution (NMR analyses), and in silico (computer-aided conformational anal.), which demonstrated that such quaternary amino acids induce β-turn conformations stable enough to be retained in polar media (DMSO). Incorporation of this new type of α,α-disubstituted amino acid into a representative pseudopeptidic sequence by N- then C-elongation and N-debenzylation is also described herein and could serve for the synthesis of various structured peptidomimetics.

This literature about this compound(61302-99-6)Name: D-Alanine methylamide hydrochloridehas given us a lot of inspiration, and I hope that the research on this compound(D-Alanine methylamide hydrochloride) can be further advanced. Maybe we can get more compounds in a similar way.

Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: D-Alanine methylamide hydrochloride( cas:61302-99-6 ) is researched.Recommanded Product: 61302-99-6.Okada, Yoshio; Tani, Shohei; Yawatari, Yuko; Yagyu, Masami published the article 《Synthesis of stereoisomeric alanine containing peptide derivatives》 about this compound( cas:61302-99-6 ) in Chemical & Pharmaceutical Bulletin. Keywords: alanine peptide stereoisomer; alanylalanine bactericide. Let’s learn more about this compound (cas:61302-99-6).

D-alanine derivatives and their stereoisomers and D-alanyl-D-alanine derivatives and their stereoisomers (R1-Ala-R2, R1-Ala-Ala-R2: R1 = PhCH2O2C, H; R2 = NHNH2, NHCH3, NHCH2CH2OH) were synthesized. All compounds obtained did not show antibacterial activity against Staphylococcus aureus, Sarcina lutea, Pseudomonas aeruginosa and Escherichia coli.

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Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem