Isolation of 13 New Ritterazines from the Tunicate Ritterella tokioka and Chemical Transformation of Ritterazine B1

Journal of Organic Chemistry

Volumn 62, Issue 13, 1997, Pages 4484-4491

  Fukuzawa, Seketsu ^a   Matsunaga, Shigeki ^a   Fusetani, Nobuhiro ^a  

^a UNIVERSITY OF TOKYO   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

ALKALOID; RITTERAZINE; STEROID; UNCLASSIFIED DRUG;

ACETYLATION; ARTICLE; CELL TRANSFORMATION; CHEMICAL MODIFICATION; CYTOTOXICITY; DERIVATIZATION; DRUG ISOLATION; NONHUMAN; STRUCTURE ACTIVITY RELATION;

EID: 0030861233     PISSN: 00223263     EISSN: None     Source Type: Journal    
DOI: 10.1021/jo970091r     Document Type: Article

References (23)

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3. Colonies of R. tokioka were collected by hand using scuba at depths of 2-10 m off the Izu Peninsula, 100 km southwest of Tokyo. They were identified as R. tokioka Kott, 1992 (family Polyclinidae, order Enterogona) by Dr. T. Nishikawa (Nagoya University). A voucher specimen (T94-001) is deposited at the Laboratory of Aquatic Natural Products Chemistry, The University of Tokyo.
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23. For the general procedure, see ref 5.