An overview on polymorph preparation methods of active pharmaceutical ingredients

Y Zhou, C Lv, X Liu, J Gao, Y Gao, T Wang… - Crystal Growth & …, 2023 - ACS Publications
Polymorphism, which plays an important role in the pharmaceutical industry, is quite
common for active pharmaceutical ingredients (API). Owing to the structural differences …

Unraveling The Impact of Isomerism on Enzymatic Polymerization of Furanic Polyesters

F Silvianti, D Maniar, B Agostinho… - Advanced …, 2024 - Wiley Online Library
As awareness of the environmental impact of fossil‐based polymers grows, the demand for
biobased alternatives rises. In this context, combining eco‐friendly synthesis techniques with …

New co-crystals/salts of gallic acid and substituted pyridines: An effect of ortho-substituents on the formation of an acid–pyridine heterosynthon

GL Denisov, YV Nelyubina - Crystals, 2022 - mdpi.com
Co-crystallization of gallic acid with pyridines and their polyaromatic analogue, quinoline,
ortho-substituted by various proton-donating groups able to form hydrogen bonds, produced …

A Peptoid-like Approach Led to Lactam–Lactam Dimer Formation in 2-Hydroxy-N-alkyl-N-phenyl-nicotinamides and Their Polymorphism and Solvatomorphism

W Gao, Y Li, Y Zhoujin, Q Zeng, L Fang, S Parkin… - ACS …, 2023 - ACS Publications
Four 2-hydroxy-N-alkyl-N-phenyl-nicotinamides (1–4) were synthesized, and their crystal
structures were analyzed to investigate the effect of substitution on their crystal packing of N …

Inter-vs. Intra-Molecular Hydrogen Bond in Complexes of Nitrophthalic Acids with Pyridine

K Jóźwiak, A Jezierska, JJ Panek, A Kochel… - International Journal of …, 2023 - mdpi.com
This study covers the analysis of isomeric forms of nitrophthalic acids with pyridine. This
work dwells on the complementary experimental (X-ray, IR and Raman) and theoretical (Car …

Polymorphic solvates, ionic cocrystals and C–N bond formation to form ionic cocrystals in sulfamethoxazole and sulfathiazole-derived urea

J Nath, JB Baruah - CrystEngComm, 2022 - pubs.rsc.org
Two polymorphs of a dimethylformamide solvate of N-(5-methyl-1, 2-oxazol-3-yl)-4-{[(4-
nitrophenyl) carbamoyl] amino} benzene-1-sulfonamide (HSMZU) were studied to elucidate …

anti/gauche Conformations Lead to Polymorphism in Homologous Phenylalkylamino-Nicotinic Acids

Y Zhoujin, Y Li, PY Liang, PP Zhou, S Parkin… - Crystal Growth & …, 2023 - ACS Publications
A series of phenylalkylamino-nicotinic acids (1–4) were synthesized by varying the length of
the linker between the pyridine and benzene rings, and their polymorphism was …

Discovering crystal forms of the bio-based nylon 5O monomer 1, 5-pentanediamine-O-phthalate: insight into the crystal structures, transformations and stability

Z Li, X Fang, P Yang, S Li, Q Wen, W Zhuang, J Wu… - …, 2022 - pubs.rsc.org
Nylon 5O is one of the new bio-based nylon materials since its raw material 1, 5-
pentanediamine is prepared by biological methods using biomass as a raw material …

Insights into polymorphism and inclusion properties in organic compounds

V Jayant, M Yusuf - Discover Chemistry, 2024 - Springer
Polymorphism is critical in applied sectors like pharmaceuticals and specialized industries
due to the distinct physicochemical properties of different polymorphs. Despite advances in …

Constructing Supramolecular Frameworks Based Imidazolate-Edge-Bridged Metallacalix [3] arenes via Hierarchical Self-Assemblies

B Cui, L Zhao, J Tong, X Wang, S Yu - Crystals, 2022 - mdpi.com
Hierarchical self-assembly of novel supramolecular structures has obtained increasing
attention. Herein we design and synthesize the palladium (II)-based molecular basket-like …