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J. Org. Chem., Vol. 56, No. 4, 1991
Additions a n d Corrections
Additions and Corrections VOl. 55, 1990 Kenneth L. Rinehart,* Tom G. Holt, Nancy L. Fregeau, J u s t i n G. Stroh, P a u l A. Keifer, F u r o n g S u n , Li H. Li, a n d David G. Martin. Ecteinascidins 729,743,745,759A, 759B, and 770: Potent Antitumor Agents from the Caribbean Tunicate Ecteinascidia turbinata. Page 4513, ref 12 should read "(a) Rinehart, K. L.; Namikoshi, M.; Thompson, A. G.; Shield, L. S.; Gride, G.; Grimmelikhuijzen, C. J. P.; Nothacker, H.-P.; Carmichael, W. W.; Sivonen, K.; Doughty, C. C.; Grimshaw, C. E. In Proc. 4th Zntl. Symp. Nut. F
w
a
2
Prod. Chem.; Karachi, Pakistan, Jan. 27-Feb. 2,1990, Atta-urRahman, Ed.; Eleevier: Amsterdam, in press. (b) Rinehart, K. L.; Thompson, A. G.; Rong, L.; Milberg, R. M.; Curtis,J. M.; Sun, F. In Proc. 37th ASMS Conf. Mass Spectrom. Allied Topics; Miami Beach, FL, May 21-26, 1989; pp 1128-1130. Page 4514, column 2, line 24, should read "that at C-1' is arbitrary." Page 4513-4. Unrevised figures were published instead of the following appropriately revised figures: Schemes I and 11, unit C, and structures 2-4. 6.46
4
Scheme I mh
?u
Scheme 11
vi
1 (E1 743):XI OH
n
u
