A New Unsaturated Aliphatic Anhydride from Aspergillus candidus T₁₂19W1, an Endophytic Fungus, from Pittosporum mannii Hook f.

Table 1

¹³C (200 MHz, DMSO-d₆) and ¹H-NMR (800 MHz, DMSO-d₆) data for compound 1.

1 ((Z)-(12Z)-heptadec-12-enoic-2′-hydroxypropanoic anhydride (1))
Pos	δC	δH (mult., J (Hz))	HMBC	TOCSY
1	174.45
2	35.15	2.00 (m)	1, 3, 4
3	25.15	1.45 (m)	1, 2, 5	H2-H3-H4
4	28.76	1.23 (brs)
5	28.72	1.23 (brs)
6	28.85	1.23 (brs)
7	28.88	1.23 (brs)
8	29.00	1.23 (brs)
9	29.05	1.23 (brs)
10	29.10	1.23 (brs)
11	28.60	1.23 (brs)
12	129.70	5.38 (brs)
13	129.70	5.31 (dt, 5.6, 4.2)	14	H15-H13-H14
14	26.58	1.97 (m)
15	31.31	1.28 (brs)	13
16	22.13	1.26 (brs)	14
17	13.98	0.85 (t, 6.7)	15, 16	H17-H16-H15
1′	176.84
2′	67.08	3.45 (obs)
3′	21.57	1.07 (d, 6.7)	1', 2'	H2'-H3'

Obscured by overlapping resonances (obs).