| 主权项 |
1. A compound of Formula (I):wherein:
X1 is —ORA or —SRA, wherein RA is hydrogen, an oxygen or sulfur protecting group, optionally substituted C1-10 alkyl, optionally substituted aryl, optionally substituted acyl, or optionally substituted imidoyl; R2 and R11 are independently optionally substituted arylalkyl; RN1, RN2, and RN3 are independently —N3 or —N(RW)2, wherein each RW is independently hydrogen or a nitrogen protecting group; R3 and R6 are independently —C(O)RD, wherein each occurrence of RD is independently optionally substituted alkyl or optionally substituted aryl; R1, R5, and R9 are independently selected from the group consisting of optionally substituted arylalkyl and —Si(RB)3, wherein each RB is independently alkyl or aryl; R10 is optionally substituted arylalkyl; RY and RZ are independently hydrogen or an oxygen protecting group; R7 is selected from the group consisting of —Si(RB)3, optionally substituted arylalkyl, and —C(O)RC, wherein RC is optionally substituted alkyl, optionally substituted aryl, or optionally substituted arylalkyl; and R4 and R8 are independently optionally substituted arylalkyl; or a salt thereof. |
