title: 3-(2-Acetamido-eth-yl)-1H-indol-5-yl 4-nitro-phenyl carbonate.
abstract: In the title mol-ecule, C(19)H(17)N(3)O(6), the indole ring system is essentially planar (r.m.s. deviation = 0.009 Å) and forms a dihedral angle of 31.96 (9)° with the nitro-substituted benzene ring. In the crystal, mol-ecules are linked by pairs of N-H⋯O hydrogen bonds, forming inversion dimers which are connected by further N-H⋯O hydrogen bonds into a two-dimensional network parallel to (102).
authors.affiliation: National Medicines Institute, Chełmska 30/34, 00-725 Warsaw,  Poland ; NationalCentre for Nuclear Research, 05-400 Otwock-Świerk,  Poland.
authors.forename: Jan K
authors.initials: JK
authors.lastname: Maurin
authors.forename: Anna
authors.initials: A
authors.lastname: Zawadzka
authors.forename: Iwona
authors.initials: I
authors.lastname: Lozińska
authors.forename: Zbigniew
authors.initials: Z
authors.lastname: Czarnocki