Title: Rokitamycin
CAS Registry Number: 74014-51-0
CAS Name: Leucomycin V 4B-butanoate 3B-propanoate
Additional Names: 3¢¢-propionylleucomycin A5; 5-[O-(2,6-dideoxyhexopyranosyl)-(1®4)-3,6-dideoxy-3-dimethylamino-b-D-glucopyranosyloxy]-6-formylmethyl-3,9-dihydroxy-4-methoxy-8-methyl-10,12-hexadecadien-15-olide; rikamycin
Manufacturers' Codes: M-19-Q; TMS-19Q
Trademarks: Ricamycin (Toyo Jozo); Rokital (Formenti)
Molecular Formula: C42H69NO15
Molecular Weight: 827.99
Percent Composition: C 60.92%, H 8.40%, N 1.69%, O 28.98%
Literature References: Macrolide antibiotic active against Mycoplasma and macrolide resistant strains of Staphylococcus aureus and Streptococcus pyogenes. Prepn: H. Sakakibara et al., DE 2918954 corresp to US 4242504 (1979, 1980 both to Toyo Jozo); eidem, J. Antibiot. 34, 1001 (1981). Series of articles on antibacterial activity, pharmacology, metabolism, toxicology: Chemotherapy (Tokyo) 32, Suppl. 6, 1-627 (1984). Toxicity data: K. Matsumoto et al., ibid. 138.
Properties: mp 116°. [a]D20 -71° (c = 1.0 in chloroform). uv max (ethanol): 232 nm (e 28000).
Melting point: mp 116°
Optical Rotation: [a]D20 -71° (c = 1.0 in chloroform)
Absorption maximum: uv max (ethanol): 232 nm (e 28000)
Therap-Cat: Antibacterial.
Keywords: Antibacterial (Antibiotics); Macrolides.
Rolicyprine Rolitetracycline Romurtide Ronidazole Ronifibrate

Systematic (IUPAC) name
(2S,3S,4R,6S)-6-{[(2R,3S,4R,5R,6S)-6-{[(4R,5S,6S,7R,9R,10R,11E,13E,16R)-4,10-dihydroxy-5-methoxy-9,16-dimethyl-2-oxo-7-(2-oxoethyl)-1-oxacyclohexadeca-11,13-dien-6-yl]oxy}-4-(dimethylamino)-5-hydroxy-2-methyloxan-3-yl]oxy}-2,4-dimethyl-4-propoxyoxan-3-yl butanoate
Clinical data
AHFS/ International Drug Names
Legal status  ?
CAS number 74014-51-0 N
ATC code J01FA12
PubChem CID 5282211
ChemSpider 4445397 YesY
Chemical data
Formula C42H71NO14 
Mol. mass 827.999 g/mol
Physical data
Melt. point 116 °C (241 °F)
Solubility in water Insoluble in water; Very soluble in chloroform and methanol; Almost completely (>99.5 %) in ethanol and acetonitrile. mg/mL (20 °C)
 N (what is this?)  (verify)

Rokitamycin is a macrolide antibiotic. Synthesized from strains of Streptomyces kitasatoensis.