Table 2.

Atomic coordinates and equivalent isotopic displacement parameters of the non-hydrogen atoms for compound 3a.

Atom	X	y	z	U(eq) (Å)
O1	4352(3)	1012(1)	847(2)	40(1)
N1	4756(2)	1505(1)	1690(2)	30(1)
C1	5185(3)	1834(1)	3727(2)	27(1)
N2	5023(3)	1304(1)	2850(2)	31(1)
C2	5453(3)	1581(1)	4987(2)	30(1)
N3	4805(3)	3220(1)	6573(2)	31(1)
C3	5450(3)	2053(1)	5905(2)	30(1)
N4	6475(3)	4241(1)	278(2)	31(1)
C4	5022(3)	2797(1)	5621(2)	26(1)
C5	4176(3)	3885(1)	6283(2)	33(1)
C6	3671(3)	4172(1)	5057(2)	31(1)
C7	3981(3)	3766(1)	4106(2)	25(1)
C8	4760(3)	3061(1)	4379(2)	23(1)
C9	5102(3)	2576(1)	3450(2)	24(1)
C10	5341(3)	2768(1)	2253(2)	23(1)
C11	6022(3)	3458(1)	1933(2)	23(1)
C12	7059(3)	3966(1)	2846(2)	24(1)
C13	7774(3)	4584(1)	2462(2)	29(1)
C14	7358(3)	4711(1)	1165(2)	32(1)
C15	5900(3)	3601(1)	655(2)	26(1)
C16	5319(3)	3039(1)	−267(2)	30(1)
C17	4994(3)	2362(1)	80(2)	30(1)
O(1W)	2543(3)	−32(1)	3254(2)	44(1)
C18	5027(3)	2224(1)	1336(2)	26(1)