title: Antalarmin.
abstract: In the mol-ecule of the title compund [systematic name: N-butyl-N-ethyl-2,5,6-trimethyl-7-(2,4,6-trimethyl-phen-yl)-7H-pyrrolo[2,3-d]pyrimidin-4-amine], C(24)H(34)N(4), the pyrrolopy-rimidine ring system is nearly planar, its five- and six-membered rings forming a dihedral angle of 5.3 (2)°. The benzene ring is nearly orthogonal to the central ring system. The N atom carrying the ethyl and n-butyl groups is flattened pyramidal.
authors.forename: Stephen R
authors.initials: SR
authors.lastname: Slauson
authors.forename: John M
authors.initials: JM
authors.lastname: Rimoldi
authors.forename: Frank R
authors.initials: FR
authors.lastname: Fronczek