(1S,3S,4S)-tert-Butyl N-[1-benzyl-3-hydroxy-5-phenyl-4-(picolinamido)pentyl]carbamate
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چکیده
The title compound, C(29)H(35)N(3)O(4), was obtained by the reaction of (2S,4S,5S)-tert-butyl N-(4-amino-1-benzyl-3-hydr-oxy-5-phenyl-pent-yl)carbamate and picolinic acid using oxalyl chloride as a chlorinating reagent to activate the carboxyl group. In the crystal structure there are two mol-ecules in the asymmetric unit, which are aligned edge-to-face. In one mol-ecule, the pyridyl ring forms a dihedral angle of 22.0 (1)° with the phenyl ring of the terminal benzyl group and 14.3 (1)° with the other phenyl ring; in the other mol-ecule, the corresponding angles are 12.1 (1) and 10.6 (1)°, respectively. The packing is stabilized by inter-molecular hydrogen bonds and C-H⋯π inter-actions.
منابع مشابه
tert-Butyl N-benzyl-N-[4-(4-fluorobenzoylmethyl)-2-pyridyl]carbamate
In the crystal structure of the title compound, C(25)H(25)FN(2)O(3), the pyridine ring makes dihedral angles of 75.1 (3), 39.4 (3) and 74.6 (3)° with the phenyl ring, the carbamate plane and the 4-fluoro-phenyl ring, respectively. The phenyl ring makes dihedral angles of 77.2 (3) and 23.6 (3)° with the carbamate plane and the 4-fluoro-phenyl ring, respectively. The 4-fluoro-phenyl ring is perpe...
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The relative stereochemistry of the title compound, C(20)H(23)NO(3), was established by X-ray analysis. The asymmetric unit contains two independent mol-ecules. In the crystal structure, each type of mol-ecule forms a centrosymmetric dimer via pairs of inter-molecular O-H⋯O hydrogen bonds, resulting in an R(2) (2)(10) loop in each case.
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