Table XXIV.

¹³C NMR Data of Galanthamine-Type Alkaloids

Alkaloid	75	77	78	79	80	81	82	83	84	86
C-1	88.1	86.2	88.2	88.4	87.9/88.7	88.8	88.7	88.0	89.8	90.0
C-2	30.0	27.7	30.3	29.9	29.8	31.3	29.2	37.3	31.5	31.7
C-3	62.2	63.2	61.7	61.9	61.4	62.6	61.4	194.4	65.2	65.5
C-4	126.8	123.3	129.2	127.6	128.0/128.2	128.6	128.2	127.1	27.6	27.8
C-4a	126.0	121.8	125.9	127.1	125.8/126.2	128.1	125.1	144.3	31.7	37.5
C-6	60.5	59.9	51.6	53.5	41.0/52.8	61.6	58.4	60.7	60.4	53.8
C-6a	129.5	127.2	123.6	132.1	127.4	128.0	127.1	129.4	129.1	127.2
C-7	121.6	130.2	122.8	120.9	119.9/121.6	123.1	121.2	122.0	121.6	120.8
C-8	110.5	111.7	112.2	111.3	111.4	116.7	111.3	111.8	111.3	110.9
C-9	145.5	146.7	146.9	146.2	146.2/146.5	146.8	146.8	147.0	146.2	146.6
C-10	144.0	144.4	145.3	144.1	144.3/144.5	142.6	144.5	144.0	144.0	144.2
C-10a	132.7	131.9	133.1	133.1	131.8/131.9	134.2	131.2	130.5	136.3	136.6
C-10b	48.2	47.8	48.2	48.5	48.0/48.1	47.9	48.1	49.0	46.7	47.4
C-11	34.0	33.7	35.6	39.7	46.6/46.7	35.5	35.1	33.2	23.9	24.2
C-12	54.3	53.4	45.9	46.8	35.7/39.1	55.2	35.2	54.1	54.1	47.4
OMe	55.5	56.0	56.2	55.9	55.8	—	55.6	56.0	55.9	56.1
NMe	42.2	40.9	—	—	—	43.1	—	42.4	41.9	—
NCHO	—	—	—	—	162.1/162.7	—	—	—	—	—
OCMe	—	170.9	—	—	—	—	161.2	—	—	—
OCMe	—	21.4	—	—	—	—	21.4	—	—	—
Solvent	d	d	b	d	b	c	d	d	d	d
MHz	—	100	50	50	50	75	50	90	25	50
Reference	(362)	(167)	(141)	(107)	(83)	(377)	(117)	(181)	(367)	(107)

Solvent a: DMSO-d₆, b: CDCl₃-CD₃OD, c: CD₃OD, d: CDCl₃.