Table 2.

Selected bond lengths (Å) and bond angles (°) of matrine derivatives 1–2.

Sophocarpine
C12-C13	1.4925(16)	C12-C13-C14	120.73(10)
C13-C14	1.3229(18)	C13-C14-C15	121.78(11)
C11-C12	1.529(16)	N16-C15-C14	117.84(10)
C14-C15	1.478(16)
1
C12-C13	1.5225(18)	C12-C13-C14	107.45(11)
C13-C14	1.517(19)	C13-C14-C15	113.80(11)
C11-C12	1.519(16)	N16-C15-C14	117.93(11)
C14-C15	1.512(18)	N19-C13-C14	111.99(11)
N19-C13	1.468(17)	N19-C13-C12	112.61(10)
		C20-N19-C13	128.63(12)
2
C12-C13	1.526(2)	C12-C13-C14	108.18(12)
C13-C14	1.529(18)	C13-C14-C15	116.58(11)
C11-C12	1.525(18)	N16-C15-C14	118.47(12)
C14-C15	1.512(19)	N19-C13-C14	107.87(11)
N19-C13	1.476(16)	N19-C13-C12	113.60(12)
N19-C20	1.475(17)	C20-N19-C13	116.43(11)