tert-butyl N-[2-[N-(N, N'-dicyclohexylureidocarbonylethyl)carbamoyl]prop-2-yl]carbamate.
نویسندگان
چکیده
The title compound, C(25)H(44)N(4)O(5), exhibits a turn with the main chain reversing direction, held together by an intramolecular N-H.O hydrogen bond. In the urea fragment, a notable amide C-N bond between the carboxyl C and the tertiary N atom shows marked single-bond character [1.437 (2) A]. The dihedral angle of the beta-alanyl residue, centrally located in the turn, is gauche [69.2 (2) degrees ]. The packing is mediated by two intermolecular hydrogen bonds and van der Waals contacts involving the methyl moieties and the cyclohexyl rings.
منابع مشابه
tert-Butyl N-{2-[bis(prop-2-yn-1-yl)amino]phenyl}carbamate
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The title compound C(19)H(27)N(3)O(3)S, crystallizes with two unique mol-ecules in the asymmetric unit. The benzene ring of each benzothia-zole unit carries a dipropyl-carbamoyl substituent in the 6-position and a tert-butyl carbamate unit on each thia-zole ring. In the crystal structure, inter-molecular N-H⋯N and weak C-H⋯O hydrogen bonds form centrosymmetric dimers. Additional C-H⋯O contacts ...
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ورودعنوان ژورنال:
- Acta crystallographica. Section C, Crystal structure communications
دوره 56 ( Pt 9) شماره
صفحات -
تاریخ انتشار 2000