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Page 1
Showing results for achiral n
Search for Archirel N instead (1 results)
Cucurbituril: chiral applications.
Mandadapu V, Day AI, Ghanem A. Mandadapu V, et al. Chirality. 2014 Nov;26(11):712-23. doi: 10.1002/chir.22363. Epub 2014 Aug 28. Chirality. 2014. PMID: 25169840 Review.
This review brings together the past and current methods for synthesizing the classical cucurbit[n]uril (Q[n]), structural variants, and derivatives. Here we refer to the first family of Q[n] as " classical," where the cavity is spheroidal and carry no substi …
This review brings together the past and current methods for synthesizing the classical cucurbit[n]uril (Q[n]), structural var …
N,N'-bis(2-hydroxycyclohexyl)-N,N'-bis(2-hydroxyethyl)ethane-1,2-diaminium dichloride.
de Sousa AS, Hlam Z, Fernandes MA, Marques HM. de Sousa AS, et al. Acta Crystallogr C. 2010 Nov;66(Pt 11):o553-6. doi: 10.1107/S0108270110039995. Epub 2010 Oct 21. Acta Crystallogr C. 2010. PMID: 21051823
The achiral meso form of the title compound, C(18)H(38)N(2)O(4)(2+).2Cl(-), crystallizes to form undulating layers consisting of chains linked via weak hydroxyalkyl C-H...Cl contacts. The chains are characterized by centrosymmetric hydrogen-bonded dimers generated v …
The achiral meso form of the title compound, C(18)H(38)N(2)O(4)(2+).2Cl(-), crystallizes to form undulating layers consisting …
Endohedral isomerism in model achiral and chiral La@C(58)N(2) systems.
Ostrowski S, Garnuszek P, Dobrowolski JC. Ostrowski S, et al. Spectrochim Acta A Mol Biomol Spectrosc. 2020 Apr 15;231:117791. doi: 10.1016/j.saa.2019.117791. Epub 2019 Nov 21. Spectrochim Acta A Mol Biomol Spectrosc. 2020. PMID: 31992498 Free article.
Endohedral structures with La(0) or La(3+) encapsulated in chiral (1,16)C(58)N(2) or achiral (1,4)C(58)N(2) diazafullerenes were studied at the B3LYP/G-31G*/SDD level. Two stable locations of La(0) and La(3+) are possible in each cage but only with La(0)@(1,1 …
Endohedral structures with La(0) or La(3+) encapsulated in chiral (1,16)C(58)N(2) or achiral (1,4)C(58)N(2) diazafuller …
Metal-Ion-Induced Mechanical Chirality: Achiral Rotaxane as the Only Ligand in Chiral Palladium(II)-N-Heterocyclic Carbene Complexes.
Cho HL, Lai CC, Liu YH, Hsu HF, Peng SM, Chiu SH. Cho HL, et al. Org Lett. 2022 Mar 18;24(10):1996-2001. doi: 10.1021/acs.orglett.2c00426. Epub 2022 Mar 7. Org Lett. 2022. PMID: 35254087
We report the insertion of Pd(II) into an originally achiral rotaxane producing two chiral metallorotaxanes: one is planar-chiral, with its two interlocked components both chelating nonequivalently to the metal center; the other is C(2)-symmetrical-chiral, with the dynamic …
We report the insertion of Pd(II) into an originally achiral rotaxane producing two chiral metallorotaxanes: one is planar-chiral, wi …
catena-Poly[zinc-tris-(mu-dimethyl-carbamato-kappaO:O')-zinc-mu-(2-phenyl-benzimidazolido-kappaN:N'].
Rodriguez MA, Sava DF, Nenoff TM. Rodriguez MA, et al. Acta Crystallogr Sect E Struct Rep Online. 2012 Jan;68(Pt 1):m59-60. doi: 10.1107/S1600536811053177. Epub 2011 Dec 17. Acta Crystallogr Sect E Struct Rep Online. 2012. PMID: 22259357 Free PMC article.
The crystal structure of the title compound, [Zn(2)(C(13)H(9)N(2))(C(3)H(6)NO(2))(3)](n), displays a long chiral chain. This is composed of zinc-dimer clusters capped by dimethyl-carbamate ligands, which lie on crystallographic twofold rotation axes and are polymeri …
The crystal structure of the title compound, [Zn(2)(C(13)H(9)N(2))(C(3)H(6)NO(2))(3)](n), displays a long chiral chain. This i …
Parallel achiral-chiral determination of oxybutynin, N-desethyl oxybutynin and their enantiomers in human plasma by LC-MS/MS to support a bioequivalence trial.
Sharma P, Patel DP, Sanyal M, Guttikar S, Shrivastav PS. Sharma P, et al. J Pharm Biomed Anal. 2014 Jan;88:81-91. doi: 10.1016/j.jpba.2013.08.032. Epub 2013 Aug 30. J Pharm Biomed Anal. 2014. PMID: 24036364
A parallel achiral and chiral determination of oxybutynin, its pharmacologically active metabolite N-desethyl oxybutynin and their enantiomers in human plasma is described using LC-MS/MS. Both the methods were developed and validated using deuterated analogues as in …
A parallel achiral and chiral determination of oxybutynin, its pharmacologically active metabolite N-desethyl oxybutynin and t …
Synthesis and anti-parasitic activity of achiral N-benzylated phosphoramidic acid derivatives.
Adeyemi CM, Conibear AC, Mutorwa MK, Nokalipa IC, Isaacs M, Mnkandhla D, Hoppe HC, Lobb KA, Klein R, Kaye PT. Adeyemi CM, et al. Bioorg Chem. 2020 Aug;101:103947. doi: 10.1016/j.bioorg.2020.103947. Epub 2020 May 16. Bioorg Chem. 2020. PMID: 32559578
Synthetic pathways have been developed to access a series of N-benzylated phosphoramidic acid derivatives as novel, achiral analogues of the established Plasmodium falciparum 1-deoxy-d-xylulose-5-phosphate reductase (PfDXR) enzyme inhibitor, FR900098. ...
Synthetic pathways have been developed to access a series of N-benzylated phosphoramidic acid derivatives as novel, achiral an …
The achiral tetrapeptide Z-Aib-Aib-Aib-Gly-OtBu.
Gessmann R, Brückner H, Petratos K. Gessmann R, et al. Acta Crystallogr C Struct Chem. 2014 Nov;70(Pt 11):1046-9. doi: 10.1107/S2053229614022165. Epub 2014 Oct 15. Acta Crystallogr C Struct Chem. 2014. PMID: 25370104
The title achiral peptide N-benzyloxycarbonyl-alpha-aminoisobutyryl-alpha-aminoisobutyryl-alpha-aminoisobutyrylglycine tert-butyl ester or Z-Aib-Aib-Aib-Gly-OtBu (Aib is alpha-aminoisobutyric acid, Z is benzyloxycarbonyl, Gly is glycine and OtBu indicates the tert-b …
The title achiral peptide N-benzyloxycarbonyl-alpha-aminoisobutyryl-alpha-aminoisobutyryl-alpha-aminoisobutyrylglycine tert-bu …
A Living Topochemical Ring-Opening Polymerization of Achiral Amino Acid N-Carboxy-Anhydrides in Single Crystals.
Rohmer M, Ebbinghaus SG, Busse K, Radicke J, Kressler J, Binder WH. Rohmer M, et al. Chemistry. 2023 Dec 6;29(68):e202302585. doi: 10.1002/chem.202302585. Epub 2023 Oct 24. Chemistry. 2023. PMID: 37698241
A living topochemical ring-opening polymerization (ROP) of achiral amino-acid N-carboxyanhydrides (NCAs) is reported. Single crystals of the NCAs of alpha-aminoisobutyric acid (Aib) and 1-aminocyclohexanecarboxylic acid (ACHC) were grown, allowing a ring-opening pol …
A living topochemical ring-opening polymerization (ROP) of achiral amino-acid N-carboxyanhydrides (NCAs) is reported. Single c …
Recent advances in N-heterocyclic carbene catalyzed achiral synthesis.
Ren Q, Li M, Yuan L, Wang J. Ren Q, et al. Org Biomol Chem. 2017 Jun 14;15(22):4731-4749. doi: 10.1039/c7ob00568g. Epub 2017 May 25. Org Biomol Chem. 2017. PMID: 28540374
N-Heterocyclic carbenes (NHCs) have emerged as powerful and elegant organocatalysts in a variety of newly developed and unprecedented enantioselective transformations due to their unique umpolung capacity. ...Herein, this review aims to reveal the recent developments in NH …
N-Heterocyclic carbenes (NHCs) have emerged as powerful and elegant organocatalysts in a variety of newly developed and unprecedented …
1,329 results