Abstract
The following changes were made to the revised Supporting Information document submitted with this correction: (1) All data referring to compound 4o has been removed. (2) HPLC traces for 4a, 4d, 4h, and 4n have been replaced with less ambiguous choices, pp 43−47. (3) Clarification of the method to confirm peak identities is now included, p 48. (4) Confirmation of peak identities is now included for compounds 4a, 4d, 4h, 4k, 4l, and 4n, pp 48−50. (5) Missing retention times for compounds 4a and 4g have been added on p 42. (6) H NMR peaks have been added for compounds 4k and 4j. These were missing in the original document, p 5. (7) The new Supplemental Figure 1 has been added (p 2), which shows that the Hantzsch reaction to produce compound 4b does not proceed in the absence of catalyst. We previously neglected to include this important data. This material is available free of charge via the Internet at http://pubs.acs.org.
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