266
MAURICE WELSCH
OH
CH 8 OH
1
CH.OH
OH
in A,R =
\c—CHOH-(CH 2 ; 12 -CH 2 -CH a OH
J
—O v
ß-cellobiose
OH
Ustilagic acids A and Β
(V)
-CHOH—(CH.^—CHOH-CH 2 OH
(ustilic acids)
D-rhamnose
Pyolipic acid
(VI)
HO
iOH
OH
D-xylose
COOH
I
CH 2
CH 2
O-CH
I
CH
CH
I
ί
c
I
c
CH
Nemotinic acid xyloside
(VH)
CH.
I *
HCOH
I
HCN
I
H 2 C—OCH s
CH 8
(CH 2 ) 5
CH
NCH
Elaiomycin
(Vffl)
OH
CH,
o=c
VOH
OH
5 - keto- 6-deoxyarabohexose
HC=C—C—Ν
'I
II Η
H,C Ο
OH
neoinosamine-2
(with a methylene dioxy bridge)
Homomycin
(K)
OH
D-Talose
(Kb)
hygroscopicus, especially var. angustmyceticus and decoyimine); D-psicose (XI) in three closely related substances produced by streptomycetes
—antibiotic U-9586, psicofuranine, and angustmycin C, the first two
showing antibacterial and anticancer properties in vivo (53b), the last
one being antibiotically inactive; cordycepose (XII) in cordycepin from