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Volumn 54, Issue 31, 1998, Pages 8985-8998

Stereoselective synthesis of alexine stereoisomers from (S)- pyroglutamic acid

Author keywords

[No Author keywords available]

Indexed keywords

1 EPIALEXINE; 1,7 DIEPIALEXINE; 1,7,7A TRIEPIALEXINE; 1,7A DIEPIALEXINE; PYROGLUTAMIC ACID DERIVATIVE; PYRROLIZIDINE ALKALOID; UNCLASSIFIED DRUG;

EID: 0032581633     PISSN: 00404020     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0040-4020(98)00542-0     Document Type: Article
Times cited : (38)

References (29)
  • 19
    • 0026525257 scopus 로고
    • 4. Preliminary communication, Ikota, N., Tetrahedron Lett. 1992, 33, 2553-2556.
    • (1992) Tetrahedron Lett. , vol.33 , pp. 2553-2556
    • Ikota, N.1
  • 22
    • 0010521042 scopus 로고    scopus 로고
    • note
    • 4 However, the repeated experiments revealed that the diastereomeric mixture (ratio about 2-2.5:1=15b: 15a) was always formed.
  • 25
    • 0010522991 scopus 로고    scopus 로고
    • note
    • 10. Oxidation of 16 by the method of Swern gave a ketone which on reduction with sodium borohydride in EtOH at -78°C resulted in the formation of 16 and 19 in 1:1.2 ratio.
  • 27
    • 0010490143 scopus 로고    scopus 로고
    • note
    • -3. Atomic coordinates and e.s.d's have been deposite at the Cambridge Crystallographic Data Centre.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.