메뉴 건너뛰기




Volumn 74, Issue 4, 2011, Pages 882-887

N, N′ -methyleno-didemnin A from the ascidian trididemnum solidum. Complete NMR assignments and confirmation of the imidazolidinone ring by strategic analysis of 1 J CH

Author keywords

[No Author keywords available]

Indexed keywords

DIDEMNIN A; IMIDAZOLE DERIVATIVE; ANTINEOPLASTIC AGENT; DEPSIPEPTIDE; DIDEMNINS; N,N' METHYLENO DIDEMNIN A; N,N'-METHYLENO-DIDEMNIN A;

EID: 79955424846     PISSN: 01633864     EISSN: 15206025     Source Type: Journal    
DOI: 10.1021/np100846s     Document Type: Article
Times cited : (12)

References (29)
  • 3
    • 79955459489 scopus 로고
    • U.S. Patent 5,294,603, Mar 15.
    • Rinehart, K. L. U.S. Patent 5,294,603, Mar 15, 1994.
    • (1994)
    • Rinehart, K.L.1
  • 15
    • 79955429960 scopus 로고    scopus 로고
    • The conditions of isolation of 4 likely render the imidazolidinone ring as the HCl salt; however, 5 - 8 were isolated as their free bases.
    • The conditions of isolation of 4 likely render the imidazolidinone ring as the HCl salt; however, 5 - 8 were isolated as their free bases.
  • 16
    • 79955407317 scopus 로고    scopus 로고
    • 4 J (H64α-H58) = 1.2 Hz. See also ref 15.
    • 4 J (H64α-H58) = 1.2 Hz. See also ref 15.
  • 17
    • 4244053650 scopus 로고
    • Ph.D. Thesis,. University of Illinois, Urbana.
    • Glœr, J. B., Ph.D. Thesis, Structures of the Didemnins. University of Illinois, Urbana, 1983.
    • (1983) Structures of the Didemnins
    • Glœr, J.B.1
  • 24
    • 79955430984 scopus 로고    scopus 로고
    • note
    • BX 0 Hz.
  • 25
    • 79955410735 scopus 로고    scopus 로고
    • note
    • Carbinolamines that are formally derived as adducts of peptides with formaldehyde would be expected to show pseudomolecular ions in their MS spectra that are higher by 30 amu mass units, but- as we observed for 7 - their lability under ESIMS ionization conditions is misleading. The reactive formaldehyde equivalent is easily lost, probably in the heated capillary of the ionization stage, and the expected pseudomolecular ions are absent or replaced by different product ions.
  • 29
    • 79955447818 scopus 로고    scopus 로고
    • +).
    • +).


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.