The structure of the title compound, C 13 H 16 O 4 , comprises a non-planar chiral molecule where the cyclohexene double bond is distinctly shorter [1.335 (2) A ˚] than the neighbouring C-C single bonds (>1.4 A ˚).
Synthesis and anthelmintic activity of 7-substituted 3,4a-dimethyl-4a,5a,8a,8b-tetrahydro-6H-pyrrolo[3′,4′:4,5]furo[3,2-b]pyridine-6,8(7H)-diones
✍ Scribed by Peter Jeschke; Achim Harder; Winfried Etzel; Wolfgang Gau; Axel Göhrt; Jordi Benet-Buchholz; Gerhard Thielking
- Book ID
- 108073603
- Publisher
- Elsevier Science
- Year
- 2005
- Tongue
- English
- Weight
- 202 KB
- Volume
- 15
- Category
- Article
- ISSN
- 0960-894X
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The title compound, C 18 H 28 N 6 O 6 , is a derivative of glycoluril, with two ethyl acetate substituents on the convex face of the glycoluril system. Two equivalent six-membered rings bind the N atoms from separate rings of the glycoluril unit to form the flexible sidewalls of a molecular clip. On
The title compound, C 15 H 20 O 4 , also known as dihydrohelenalin, is a drug obtained from a Chinese plant. It contains a seven-membered ring in a chair conformation and two fivemembered rings in twist conformations. The crystal packing involves O-HÁ Á ÁO hydrogen bonds. ## Related literature Fo
The title compound, C~22~H~29~NO~4~S, crystallizes with three independent molecules, __A__, __B__ and __C__, in the asymmetric unit. Each of the three independent molecules adopts a folded conformation, with the phenylsulfonyl group lying over the pyranocyclohexanone ring system, and with the pyrrol