title: N-But-oxy-carbonyl-5-oxo-l-proline ethyl ester.
abstract: The mol-ecular structure of the title compound, C12H19NO5, may be visualized as made up of two nearly perpendicular planes [dihedral angle = 87.39 (12)°] and its crystal structure is a good example of C-H⋯O inter-actions assuming significance in optimizing supra-molecular aggregation in crystals in a mol-ecule which is severely imbalanced in terms of donors to acceptor atoms. The pyrrolidine ring adopts a ((3) T 2) twist conformation with puckering parameters Q = 0.2630 (4) Å and ϕ = 59 (9)°. The crystal structure features R 2 (4)(10) and R 3 (4)(26) ring motifs formed by four weak C-H⋯O inter-actions, leading to supra-molecular sheets lying parallel to the bc plane.
authors: Department of Physics, Thiagarajar College, Madurai 625 009, India.
authors: P
authors: P
authors: Rajalakshmi
authors: N
authors: N
authors: Srinivasan
authors: R V
authors: RV
authors: Krishnakumar
authors: Ibrahim Abdul
authors: IA
authors: Razak
authors: Mohd Mustaqim
authors: MM
authors: Rosli
references: J Mol Biol. 2005 Sep 16;352(2):319-28
references: 16084526
references: Amino Acids. 2009 May;37(1):1-17
references: 19301095
references: Acta Crystallogr B. 2002 Jun;58(Pt 3 Pt 1):380-8
references: 12037359
references: J Med Chem. 1991 Jan;34(1):455-7
references: 1992147
references: Acta Crystallogr D Biol Crystallogr. 2009 Feb;65(Pt 2):148-55
references: 19171970
references: Biophys J. 2003 Sep;85(3):1440-9
references: 12944261
references: Acta Crystallogr A. 2008 Jan;64(Pt 1):112-22
references: 18156677