Errata for Chemical and Pharmaceutical Bulletin

Vol./Page: Chem. Pharm. Bull. 62, 937–941 (2014)

Title: A Lanostane Triterpenoid and Three Cholestane Sterols from Tilia kiusiana

Authors: Marie Shimada, Masaaki Ozawa, Kojiro Iwamoto, Yoshiyasu Fukuyama, Akio Kishida, and Ayumi Ohsaki

Authors Comments:

Structures of compounds 3 and 4 should be revised, because the functional groups were found to be exchanged between C-3 and C-6. Thus, compound 3 was known compound, 3β-hydroxy-cholest-7-en-6-one, and trivial name kiusianin C was withdrawn. We thank Assoc. Prof. Dr. Wolfgang Robien (University of Vienna, Austria) for the private letter regarding the revision of the structures 3 and 4 using the calculated ¹³C-NMR data (http://nmrpredict.orc.univie.ac.at/c13robot/robot.php).

Ayumi Ohsaki

Department of Chemistry, College of Humanities and Sciences, Nihon University, Japan

April 8, 2018

Vol.	Page	Line	Error	Correction
62	937	Summary	Kiusianins A–D (1–4) were isolated from the leaves of a Japanese endemic plant, Tilia kiusiana, together with 14 known compounds. The structures of a new lanostane-type triterpenoid 1 and three new cholestane-type sterols 2–4 were elucidated by spectroscopic methods,	Kiusianins A, B and D (1, 2, 4) were isolated from the leaves of a Japanese endemic plant, Tilia kiusiana, together with 15 known compounds. The structures of a new lanostane-type triterpenoid 1 and two new cholestane-type sterols 2 and 4 were elucidated by spectroscopic methods,
		left 12	isolation of four new compounds 1–4 named kiusianins A–D	isolation of three new compounds 1, 2, and 4 named kiusianins A, B, and D
		left 15	kiusianins A–D (1–4)	kiusianins A, B, and D (1, 2, 4)
		left 24	three new sterols 2–4, together with 3β-hydroxy-	two new sterols 2 and 4, together with 3β-hydroxy-5α-cholest-7-en-6-one (3)16), 3β-hydroxy-
	938	Table 1
		Table 2
		right↑2	cholest-7-en-3-one	cholest-7-en-6-one
		right↑1	The position of the hydroxyl group was unambiguously assigned to C-6 on the basis of HMBC correlation of H-5 (δH 2.25) to C-6 (δc 70.8) and 1H–1H COSY cross-peak of H-6/H-7.	The position of the hydroxyl group was unambiguously assigned to C-3 on the basis of HMBC correlation of H-5 (δH 2.25) to C-3 (δc 70.8).
	939	left 4	H-5/H-9 and H-6	H-5/H-9 and H-3
		left 8	6β-hydroxy-cholest-7-en-3-one and named kiusianin C.	3β-hydroxy-cholest-7-en-6-one (3).
		Fig. 1
		Fig. 2
			Key 1H–1H COSY (Bold) and HMBC (Arrow) Correlations for Kiusianins A–C (1–3)	Key 1H–1H COSY (Bold) and HMBC (Arrow) Correlations for Compounds (1–3)
		Fig. 3	Key NOESY Correlations for Kiusianins A–C (1–3)	Key NOESY Correlations for Kiusianins A and B (1, 2)
				Compound 3 was deleted.
	940	left 15	6β-hydroxy-cholest-7,20-diene-3-one	3β-hydroxy-cholest-7,20-diene-6-one
		left 21	New compounds 2–4	Compounds 2–4
	941	left 20	kiusianin C (3, 0.50 mg)	compound 3 (0.50 mg)
		left↑8	Kiusianin C	3β-hydroxy-cholest-7-en-6-one
		References		16) Kulig M. J., Smith L. L., J. Org. Chem., 39, 3398–3402 (1974).