Synthesis of a cyclic urea as a nonnatural biopolymer scaffold

Tetrahedron Letters

Volumn 37, Issue 30, 1996, Pages 5309-5312

  Kim, Jong Man ^a   Wilson, Troy E ^a   Norman, Thea C ^a   Schultz, Peter G ^a  

^a UNIVERSITY OF CALIFORNIA   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

2 PYRROLIDONE DERIVATIVE; UREA DERIVATIVE;

ARTICLE; DRUG SYNTHESIS; NUCLEAR MAGNETIC RESONANCE; REACTION ANALYSIS; STEREOCHEMISTRY; TECHNIQUE;

EID: 0030598062     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/0040-4039(96)01101-X     Document Type: Article

References (16)

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10. (d) Burgess, K.; Linthicum, D.S.; Shin, H. Angew. Chem. Int. Ed. Engl. 1995, 34, 907.
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14. 5. (a) Carpino, L.A.; Cohen, B.J.; Stephens, K.E.; Sadat-Aalaee, S.Y.; Tien, J.-H.; Langridge, D.C. J. Org. Chem. 1986, 51, 3734.
15. (b) Carpino, L.A.; Chao, H.G.; Beyermann, M.; Bienert, M. J. Org. Chem. 1991, 56, 2635
16. 1H NMR 0.88 (t, J = 7.4 Hz, 3H), 1.19 (d, J = 6.1 Hz, 3H), 1.50 (m, 2H), 2.62 (dd, J = 13.2, 9.2 Hz, 1H), 2.69 (t, J = 8.0 Hz, 1H), 2.89-3.04 (m, 5H), 3.15 (t, J = 8.7 Hz, 1H), 3.28 (dd, J = 8.5, 6.1 Hz, 1H), 3.32-3.36 (m, 2H), 3.43 (t, J = 8.5 Hz, 1H), 3.52-3.86 (m, 6H), 3.98 (m, 1H), 4.24 (d, J = 15.1 Hz, 1H), 4.49 (d, J = 15.1 Hz, 1H), 4.62 (s, 1H), 7.21-7.32 (m, 10H);