Table 2.

¹H and ¹³C NMR Spectroscopic Data for Alcyosterone (5).

Position	δC1, Type	δH, 2 Integ., Mult., J
1	203.9, C
2	128.4, CH	5.83, 1H, dd, 2.2, 9.9
3	142.5, CH	6.58, 1H, ddd, 2.1, 4.8, 9.6
4	28.4, CH2	2.79, 1H, dddd, 0.7, 2.4, 11.4, 19.8
		2.11, 1H, ddd, 0.8, 4.8, 19.5
5	46.6, CH	1.86, 1H, ddd, 0.7, 2.9, 10.8
6	69.7, CH	3.87, 1H, q, 2.4
7	36.8, CH2	1.74, 1H, ov 3
		1.21, 1H, ov
8	24.9, CH	2.23, 1H, ov
9	47.8, CH	2.07, 1H, ov
10	47.7, C
11	70.4 *, C	5.02, 1H, dt, 3.9, 11
12	46.7, CH2	2.20, 1H, ov
		1.48, 1H, ov
13	43.7, CH
14	56.6, CH	1.31, 1H, dd, 5.8, 11.2
15	70.5 *, CH	5.34, 1H, dd, 6.3, 6.6
16	73.0, CH	5.51, 1H, dd, 6.9, 7.0
17	59.9, CH	1.34, 1H, ov
18	15.8, CH3	1.22, 3H, s
19	13.2, CH3	1.28, 3H, s
20	30.0, CH	1.76, 1H, ov
21	18.2, CH3	0.95, 3H, d, 6.6
22	35.6, CH2	1.20, 1H, ov
		0.90, 1H, ov
23	24.4, CH2	1.36, 1H, ov
		1.11, 1H, ov
24	39.1, CH2	1.09, 1H, ov
		1.05, 1H, d, 6.6
25	27.9, CH	1.48, 1H, ov
26	22.6, CH3	0.85, 3H, d, 6.5
27	22.4, CH3	0.85, 3H, d, 6.5
1′	170.4, C
2′	21.5, CH3	1.93, 3H, s
3′	169.9, C
4′	20.7, CH3	2.06, 3H, s
5′	169.4, C
6′	20.5, CH3	2.02, 3H, s

¹ CDCl₃, 125 MHz, type determined from HSQC; ² CDCl₃, 500 MHz, J in Hz. ³ ov = overlapping signal. * Interchangeable