Conformational analysis of antineoplastic antifolates: the crystal structure of trimetrexate and the aminopterine derivative 4-[N-[(2,4-diamino-6-pteridinyl)methyl]amino]benzoic acid

1987 ◽  
Vol 30 (10) ◽  
pp. 1843-1848 ◽  
Author(s):  
Paul A. Sutton ◽  
Vivian Cody
Keyword(s):  
Crystal Structure ◽  
Benzoic Acid ◽  
Conformational Analysis ◽  
Amino Benzoic Acid

scholarly journals Crystal structure and Hirshfeld surface analysis of 4-{[(anthracen-9-yl)methyl]amino}benzoic acid

2020 ◽  
Vol 76 (1) ◽  
pp. 62-65 ◽  
Author(s):  
Adeeba Ahmed ◽  
Md. Serajul Haque Faizi ◽  
Aiman Ahmad ◽  
Musheer Ahmad ◽  
Igor O. Fritsky
Keyword(s):  
Crystal Structure ◽  
Carboxylic Acid ◽  
Benzoic Acid ◽  
Ring System ◽  
Hirshfeld Surface ◽  
Supramolecular Framework ◽  
Anthracene Derivative ◽  
The Mean ◽  
Ring Motif ◽  
Amino Benzoic Acid

In the molecule of the title anthracene derivative, C22H17NO2, the benzene ring is inclined to the mean plane of the anthracene ring system (r.m.s. deviation = 0.024 Å) by 75.21 (9)°. In the crystal, molecules are linked by pairs of O—H...O hydrogen bonds, forming classical carboxylic acid inversion dimers with an R 2 2(8) ring motif. The dimers are linked by C—H...π interactions, forming a supramolecular framework.

scholarly journals Comment on ‘Solution growth and thermal treatment of crystals lead to two new forms of 2-((2,6-dimethylphenyl)amino)benzoic acid’ by R. Hu, Y. Zhoujin, M. Liu, M. Zhang, S. Parkin, P. Zhou, J. Wang, F. Yu and S. Long, RSC Adv., 2018, 8, 15459

RSC Advances ◽  
2019 ◽  
Vol 9 (48) ◽  
pp. 28195-28198 ◽  
Author(s):  
Paulo R. S. Salbego ◽  
Tainára Orlando ◽  
Marcos A. P. Martins
Keyword(s):  
Crystal Structure ◽  
Thermal Treatment ◽  
Benzoic Acid ◽  
Structure Refinement ◽  
Solution Growth ◽  
Amino Benzoic Acid

The two polymorphs reported by Long et al. are discussed point by point, suggesting that the newly reported crystal structure is in fact the same structure previously reported, differing in how the structure refinement was performed.

scholarly journals Crystal structure of 4-[(2-hydroxy-3-methoxybenzyl)amino]benzoic acid hemihydrate

2019 ◽  
Vol 75 (2) ◽  
pp. 159-162
Author(s):  
Saima Kamaal ◽  
Md. Serajul Haque Faizi ◽  
Arif Ali ◽  
Musheer Ahmad ◽  
Mayank Gupta ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Benzoic Acid ◽  
Benzene Ring ◽  
Layered Structure ◽  
Torsion Angle ◽  
Water Molecules ◽  
Two Dimensional ◽  
Amine Molecule ◽  
Amino Benzoic Acid

In the crystal of the title vanilline derivative, 2C15H15NO4·H2O, the secondary amine molecule is accompanied by half equivalent of water. The molecule is non-planar, with torsion angle Caryl—CH2—NH—Caryl of −83.9 (2)°. In the crystal, the system of O—H...O hydrogen bonds, including bridging water molecules residing on crystallographic twofold axes, results in a two-dimensional layered structure. Within the layers, there are also weak N—H...π interactions involving the vanilline benzene ring.

Conformational analysis via LIF spectroscopy of jet-cooled molecules: hydroxy- and amino-benzoic acid esters

1993 ◽  
Vol 206 (1-4) ◽  
pp. 37-44 ◽  
Author(s):  
J. McCombie ◽  
P.A. Hepworth ◽  
T.F. Palmer ◽  
J.P. Simons ◽  
M.J. Walker
Keyword(s):  
Benzoic Acid ◽  
Conformational Analysis ◽  
Lif Spectroscopy ◽  
Acid Esters ◽  
Amino Benzoic Acid

Formation of β-hairpins in l-Pro-Gly containing peptides facilitated by 3-amino benzoic acid

2003 ◽  
Vol 44 (39) ◽  
pp. 7369-7372 ◽  
Author(s):  
M.H.V.Ramana Rao ◽  
S.Kiran Kumar ◽  
A.C. Kunwar
Keyword(s):  
Benzoic Acid ◽  
Amino Benzoic Acid
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