... ,22-tetramethyl-2-oxo-3,7,19-trioxatetracyclo[15.6.1.14,8.020,24]pentacosa-10, ... -spiro-2'-(5',6'-dihydro-2'H-pyran)-12-yl 2,6-dideoxy-4-O-(2,6- ... ,22-tetramethyl-2-oxo-3,7,19-trioxatetracyclo[15.6.1.14,8.020,24]pentacosa-10, ... 34-20-33(61-47)16-15-27(4)42(26(3)13-12-14-32-24-55-45- ... -33-19-32(60-46)15-14-26(4)42(25(3)12-11-13-31-23-54- ... 32-44,48-49,51H,15,19-23H2,1-10H3/b13-12+,27-15+,32-14+;12-11+,26-14+,31- ...