Noriaki Hirayama

Tokai University

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Crystal Structure of Carisoprodol

Analytical Sciences X-ray Structure Analysis Online (2004)

Kouhei Horio Rumiko Tanaka Hiroyuki Akama Masayuki Haramura Akito Tanaka

The title compound, C12H24N2O4, is a skeletal muscle relaxant. The crystal belongs to space group P1 with the cell dimensions a = 5.334(3), b = 10.831(5), c = 13.114(5)Å, α = 92.66(4), β = 96.03(4) and γ = 92.70(4)°. The final R value is 0.069. The molecule takes a fully extended conformation. There is an intramolecular C-H…O hydrogen bond that is important to determine the conformation.

Crystal (programming language)

10.2116/analscix.20.x43

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Citations (3)

CCDC 252571: Experimental Crystal Structure Determination

The Cambridge Structural Database (2005)

Masayuki Haramura Akiko Tanaka T. Akimoto Noriaki Hirayama

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.

10.5517/cc8gtgz

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Citations (0)

Molecular Structure of a Novel Antitumor Antibiotic Leinamycin

Chemistry Letters (1993)

Noriaki Hirayama E. S. Matsuzawa

Abstract The structure of a novel antitumor antibiotic leinamycin isolated from Streptomyces sp. was determined unequivocally by X-ray analysis. The molecule has a unique 1,3-dioxo-1,2-dithiolane moiety being connected to an 18-membered lactam ring through a spiro carbon.

Moiety

Lactam

Beta-lactam

Dithiolane

10.1246/cl.1993.1957

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Citations (24)

Association of HLA-A*11:01 with Sulfonamide-Related Severe Cutaneous Adverse Reactions in Japanese Patients

Journal of Investigative Dermatology (2020)

Ryosuke Nakamura Takeshi Ozeki Noriaki Hirayama Akihiro Sekine Taiki Yamashita

Dapsone

Toxic Epidermal Necrolysis

Sulfanilamide

Sulfonamide

10.1016/j.jid.2019.12.025

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Citations (25)

Crystal Structure of a Potent Pigmentation Agent Trioxsalen

Analytical Sciences (1998)

Isao Fujii N. Aoyama A. Miike Noriaki Hirayama

Crystal (programming language)

10.2116/analsci.14.871

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Citations (4)

Crystal Structure of Ganciclovir

X-ray Structure Analysis Online (2009)

Tomoko Kawamura Noriaki Hirayama

The crystal of the title compound, C9H13N5O4, belongs to space group P21 with cell dimensions a = 4.380(2), b = 10.909(4), c = 11.601(4)Å, and β = 99.11(3)°. The final R value is 0.0583. The chain moiety corresponding to the ribose ring in guanosine does not adopt a fully extended conformation. The relative orientation of the purine ring and the ether oxygen atom is similar to that observed in one of the crystallographically independent guanosine molecules in the crystal structure of guanosine dehydrate.

Moiety

Ribose

10.2116/xraystruct.25.51

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Citations (9)

ChemInform Abstract: Structural Studies of Mitomycins. Part 5. Structure of Mitomycin H

ChemInform (1991)

Noriaki Hirayama

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.

Mitomycin C

10.1002/chin.199126276

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Citations (0)

Structure of dimethyl 4-O-methyltrioxanoate

Acta Crystallographica Section C Crystal Structure Communications (1989)

Noriaki Hirayama Takao Iida K. SHIRAHATA

10.1107/s0108270188013137

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Citations (0)

Crystal Structure of Ciclopirox Olamine

Analytical Sciences X-ray Structure Analysis Online (2003)

Toshio Akimoto Noriaki Hirayama

The crystal structure of ciclopirox was determined. The crystal belongs to space group I41/a, and the cell dimensions are a = 26.0133(6) and c = 15.8980(8)Å. There are two ciclopirox molecules, of which one is neutral and the other is negatively charged, and one positively charged 2-amino ethanol molecule in an asymmetric unit. The final R-value is 0.068.

Crystal (programming language)

10.2116/analscix.19.x21

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Citations (0)

Crystal Structure of Tris(8-quinolinolato)aluminum(III)-Ethyl Acetate(1/0.5)

Analytical Sciences (1996)

Isao Fujii Noriaki Hirayama Junji Ohtani K. Kodama

10.2116/analsci.12.153

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Citations (54)