Syn- and anticlinal isomers of 2a'-acetoxy-1,7'-diacetyl-7',7a'-dihydro-2-oxospiro[1H-indole-3(2H),2'(2a'H)-oxeto[3,2-b]indole].
In the syn- and anticlinal isomers of the title compound, C(22)H(18)N(2)O(6), the indole moiety is not completely planar, with the pyrrolidine ring being distorted very slightly towards a conformation intermediate between half-chair and envelope. The molecular and packing structures in the crystals of these isomers are stabilized by C-H...O interactions.
Usman
Anwar
A
X-ray Crystallography Unit, School of Physics, Universiti Sains Malaysia, 11800 USM, Penang, Malaysia.
Razak
Ibrahim Abdul
IA
Fun
Hoong-Kun
HK
Chantrapromma
Suchada
S
Zhang
Yan
Y
Xu
Jian-Hua
JH