上游原料
benzyl 2-[(2S)oxiranyl]ethyl ether; (2S)-2-[2-(benzyloxy)ethyl]oxiranevinyllithium(3R)-1-(benzyloxy)-5-hexen-3-ol(2S)-4-(benzyloxy)-1-[(2S)oxiranyl]-2-butanolbenzyl (3S)-3-[[tert-butyl(diphenyl)silyl]oxy]-4-[(2S)oxiranyl]butyl ether; ([(1S)-3-(benzyloxy)-1-[(2S)oxiranylmethyl]propyl]oxy)(tert-butyl)diphenylsilane1,3-dithianebenzyl (3S,5S)-3,5-bis[[tert-butyl(diphenyl)silyl]oxy]-6-(1,3-dithian-2-yl)hexyl ether; (5S,7S)-5-[2-(benzyloxy)ethyl]-7-(1,3-dithian-2-ylmethyl)-2,2,10,10-tetramethyl-3,3,9,9-tetraphenyl-4,8-dioxa-3,9-disilaundecane1-Ethoxyethylene; Ethyl vinyl ether；Ethoxyethenetert-butyl(dimethyl)[(2R)oxiranylmethoxy]silane; tert-butyl(dimethyl)silyl (2R)oxiranylmethyl ether2-bromo-1-propene；2-bromopropene;Isopropenyl bromide;a-Methylvinyl bromide(2R)-1-[[tert-butyl(dimethyl)silyl]oxy]-4-methyl-4-penten-2-ol(4S,6R)-6-([[tert-butyl(dimethyl)silyl]oxy]methyl)-4-(iodomethyl)-4-methyl-1,3-dioxan-2-one(2R)-3-[(2S)-2-methyloxiranyl]-1,2-propanediol(2R)-1-(2-ethoxyethoxy)-3-[(2S)-2-methyloxiranyl]-2-propanoltert-butyl(dimethyl)silyl (1R)-2-(2-ethoxyethoxy)-1-[[(2S)-2-methyloxiranyl]methyl]ethyl ether; (5R)-2,2,3,3-tetramethyl-5-[[(2S)-2-methyloxiranyl]methyl]-4,7,10-trioxa-3-siladodecane(5S,6R)-2,2,3,3,6,9,9,10,10-nonamethyl-5-[(1R)-1-methyl-2-propenyl]-4,8-dioxa-3,9-disilaundecane; tert-butyl(dimethyl)silyl (2R,3S,4R)-3-[[tert-butyl(dimethyl)silyl]oxy]-2,4-dimethyl-5-hexenyl ether(3R,4S,5R)-4,6-bis[[tert-butyl(dimethyl)silyl]oxy]-3,5-dimethylhexanaltert-butyl(dimethyl)silyl (2R,3R,4S)-3-[[tert-butyl(dimethyl)silyl]oxy]-5-iodo-2,4-dimethyl-5-hexenyl ether; (5R,6R)-5-[(1S)-2-iodo-1-methyl-2-propenyl]-2,2,3,3,6,9,9,10,10-nonamethyl-4,8-dioxa-3,9-disilaundecane(2R,3R,4S)-5-iodo-2,4-dimethyl-5-hexene-1,3-diol1,1-dimethoxycyclohexane; 1-methoxycyclohexyl methyl ether(2R,3R)-2-[(1S)-2-iodo-1-methyl-2-propenyl]-3-methyl-1,5-dioxaspiro[5.5]undecane(2S)oxiranylmethanoltert-butyl[(2R)oxiranylmethoxy]diphenylsilane; tert-butyl(diphenyl)silyl (2R)oxiranylmethyl ether(2R)-1-[[tert-butyl(diphenyl)silyl]oxy]-4-penten-2-olvinyllithium1,3-dithianetert-butyl(dimethyl)[(2R)oxiranylmethoxy]silane; tert-butyl(dimethyl)silyl (2R)oxiranylmethyl ether(2R)-1-[[tert-butyl(dimethyl)silyl]oxy]-3-(1,3-dithian-2-yl)-2-propanol(2R)-2-(1,3-dithian-2-ylmethyl)oxirane(2S)-1-(1,3-dithian-2-yl)-4-penten-2-ol(1S)-1-(1,3-dithian-2-ylmethyl)-3-butenyl methyl ether; 2-[(2S)-2-methoxy-4-pentenyl]-1,3-dithiane(4R,6S)-4-([[tert-butyl(diphenyl)silyl]oxy]methyl)-6-(iodomethyl)-1,3-dioxan-2-onetert-butyl(diphenyl)silyl (1R)-2-[[tert-butyl(diphenyl)silyl]oxy]-1-[(2S)oxiranylmethyl]ethyl ether; (5R)-2,2,9,9-tetramethyl-5-[(2S)oxiranylmethyl]-3,3,8,8-tetraphenyl-4,7-dioxa-3,8-disiladecane(2S,4R)-4,5-bis[[tert-butyl(diphenyl)silyl]oxy]-1-[2-[(2S)-2-methoxy-4-pentenyl]-1,3-dithian-2-yl]-2-pentanoltert-butyl(diphenyl)silyl [(2R,4S,6R)-4-[[tert-butyl(diphenyl)silyl]oxy]-6-methoxy-6-[(2S)-2-methoxy-4-pentynyl]tetrahydro-2H-pyran-2-yl]methyl ether; tert-butyl([(2R,4S,6R)-4-[[tert-butyl(diphenyl)silyl]oxy]-6-methoxy-6-[(2S)-2-methoxy-4-pentynyl]tetrahydro-2H-pyran-2-yl]methoxy)diphenylsilanetert-butyl(dimethyl)silyl (2R,4S,6R)-2-[(2S,4E)-5-iodo-2-methoxy-4-pentenyl]-2-methoxy-6-([[(4-methoxybenzyl)oxy]methoxy]methyl)tetrahydro-2H-pyran-4-yl ether; tert-butyl[[(2R,4S,6R)-2-[(2S,4E)-5-iodo-2-methoxy-4-pentenyl]-2-methoxy-6-([[(4-methoxybenzyl)oxy]methoxy]methyl)tetrahydro-2H-pyran-4-yl]oxy]dimethylsilane2-Methoxyacetyl chloride; Methoxyacetyl chloridebenzyl (3S,5S)-3,5-bis[[tert-butyl(diphenyl)silyl]oxy]-6-(1,3-dithian-2-yl)hexyl ether; (5S,7S)-5-[2-(benzyloxy)ethyl]-7-(1,3-dithian-2-ylmethyl)-2,2,10,10-tetramethyl-3,3,9,9-tetraphenyl-4,8-dioxa-3,9-disilaundecanetert-butyl(dimethyl)silyl (1R)-2-(2-ethoxyethoxy)-1-[[(2S)-2-methyloxiranyl]methyl]ethyl ether; (5R)-2,2,3,3-tetramethyl-5-[[(2S)-2-methyloxiranyl]methyl]-4,7,10-trioxa-3-siladodecane(2R,3R)-2-[(1S)-2-iodo-1-methyl-2-propenyl]-3-methyl-1,5-dioxaspiro[5.5]undecane(2S,4R)-1-[2-((2S,4S)-6-(benzyloxy)-2,4-bis[[tert-butyl(diphenyl)silyl]oxy]hexyl)-1,3-dithian-2-yl]-4-[[tert-butyl(dimethyl)silyl]oxy]-5-(2-ethoxyethoxy)-2-methyl-2-pentanol(2S)-1-[2-((2S,4S)-6-(benzyloxy)-2,4-bis[[tert-butyl(diphenyl)silyl]oxy]hexyl)-1,3-dithian-2-yl]-2-methyl-3-[(2R)oxiranyl]-2-propanol(2S,4S)-1-[2-((2S,4S)-6-(benzyloxy)-2,4-bis[[tert-butyl(diphenyl)silyl]oxy]hexyl)-1,3-dithian-2-yl]-2-methyl-6-[(1R)-1-[(2S,3R)-3-methyl-1,5-dioxaspiro[5.5]undec-2-yl]ethyl]-6-heptene-2,4-diol(2S,4S,6S,8S,10S)-8-[2-(benzyloxy)ethyl]-4-methyl-2-(2-[(1R)-1-[(2S,3R)-3-methyl-1,5-dioxaspiro[5.5]undec-2-yl]ethyl]-2-propenyl)-1,7-dioxaspiro[5.5]undecane-4,10-diol2-((2S,4S,6S,8S,10S)-8-[2-[(1R,2S,3R)-2,4-dihydroxy-1,3-dimethylbutyl]-2-propenyl]-4,10-dihydroxy-10-methyl-1,7-dioxaspiro[5.5]undec-2-yl)ethyl 2-methoxyacetate2-[(2S,4S,8S,10S)-8-[2-((1R,2S,3R)-4-[[tert-butyl(dimethyl)silyl]oxy]-2-hydroxy-1,3-dimethylbutyl)-2-propenyl]-4,10-dihydroxy-10-methyl-1,7-dioxaspiro[5.5]undec-2-yl]ethyl 2-methoxyacetate2-[(2S,4S,8S,10S)-4-(acetoxy)-8-[2-((1R,2S,3R)-2-(acetoxy)-4-[[tert-butyl(dimethyl)silyl]oxy]-1,3-dimethylbutyl)-2-propenyl]-10-hydroxy-10-methyl-1,7-dioxaspiro[5.5]undec-2-yl]ethyl 2-methoxyacetate2-((2S,4S,6S,8S,10S)-4-(acetoxy)-8-[2-[(1R,2S,3R)-2-(acetoxy)-4-hydroxy-1,3-dimethylbutyl]-2-propenyl]-10-hydroxy-10-methyl-1,7-dioxaspiro[5.5]undec-2-yl)ethyl 2-methoxyacetate2-((2S,4S,6S,8S,10S)-4-(acetoxy)-8-[2-[(1R,2S,3S)-2-(acetoxy)-1,3-dimethyl-4-oxobutyl]-2-propenyl]-10-hydroxy-10-methyl-1,7-dioxaspiro[5.5]undec-2-yl)ethyl 2-methoxyacetatetert-butyl(dimethyl)silyl (2R,4S,6R)-2-[(2S,4E)-5-iodo-2-methoxy-4-pentenyl]-2-methoxy-6-([[(4-methoxybenzyl)oxy]methoxy]methyl)tetrahydro-2H-pyran-4-yl ether; tert-butyl[[(2R,4S,6R)-2-[(2S,4E)-5-iodo-2-methoxy-4-pentenyl]-2-methoxy-6-([[(4-methoxybenzyl)oxy]methoxy]methyl)tetrahydro-2H-pyran-4-yl]oxy]dimethylsilane2-((2S,4S,6S,8S,10S)-4-(acetoxy)-8-[2-[(1R,2S,3S)-2-(acetoxy)-1,3-dimethyl-4-oxobutyl]-2-propenyl]-10-hydroxy-10-methyl-1,7-dioxaspiro[5.5]undec-2-yl)ethyl 2-methoxyacetate2-((2S,4S,6R,8S,10S)-4-(acetoxy)-8-[(3R,4S,5S,7E,10S)-4-(acetoxy)-11-[(2R,4S,6R)-4-[[tert-butyl(dimethyl)silyl]oxy]-2-methoxy-6-([[(4-methoxybenzyl)oxy]methoxy]methyl)tetrahydro-2H-pyran-2-yl]-10-methoxy-3,5-dimethyl-2-methylene-6-oxo-7-undeceny(2S,4S,6S,8S,10S)-8-(2-[(1R,2S,3S)-2-(acetoxy)-5-[(2S,4S,6S,8R,10S)-10-[[tert-butyl(dimethyl)silyl]oxy]-4-methoxy-8-([[(4-methoxybenzyl)oxy]methoxy]methyl)-1,7-dioxaspiro[5.5]undec-2-yl]-1,3-dimethyl-4-oxopentyl]-2-propenyl)-10-hydroxy-2-(2-hydrox(1S,2R)-3-[[(2S,4S,6S,8S,10S)-10-(acetoxy)-4-hydroxy-8-(2-hydroxyethyl)-4-methyl-1,7-dioxaspiro[5.5]undec-2-yl]methyl]-1-[(1S)-3-[(2S,4S,6R,8R,10S)-10-hydroxy-4-methoxy-8-([[(4-methoxybenzyl)oxy]methoxy]methyl)-1,7-dioxaspiro[5.5]undec-2-yl]-1-met(1S,2R)-3-[[(2S,4S,6S,8S,10S)-10-(acetoxy)-4-hydroxy-8-(2-hydroxyethyl)-4-methyl-1,7-dioxaspiro[5.5]undec-2-yl]methyl]-1-[(1S)-3-[(2S,4S,6S,8R,10S)-10-hydroxy-4-methoxy-8-([[(4-methoxybenzyl)oxy]methoxy]methyl)-1,7-dioxaspiro[5.5]undec-2-yl]-1-met(2S,4S,6S,8S,10S)-8-(2-[(1R,2S,3S)-2-(acetoxy)-5-[(2S,4S,6R,8R,10S)-10-[[tert-butyl(dimethyl)silyl]oxy]-4-methoxy-8-([[(4-methoxybenzyl)oxy]methoxy]methyl)-1,7-dioxaspiro[5.5]undec-2-yl]-1,3-dimethyl-4-oxopentyl]-2-propenyl)-10-hydroxy-2-(2-hydroxtert-butyl(diphenyl)silyl 2-[(2R,4S,6R,8S,10S)-4-(acetoxy)-8-(2-[(1R,2S,3S)-2-(acetoxy)-5-[(2S,4S,6R,8R,10S)-10-[[tert-butyl(dimethyl)silyl]oxy]-4-methoxy-8-([[(4-methoxybenzyl)oxy]methoxy]methyl)-1,7-dioxaspiro[5.5]undec-2-yl]-1,3-dimethyl-4-oxtert-butyl(diphenyl)silyl 2-[(2R,4S,6R,8S,10S)-4-(acetoxy)-8-(2-[(1R,2S,3S)-2-(acetoxy)-5-[(2S,4S,6S,8R)-8-formyl-4-methoxy-1,7-dioxaspiro[5.5]undec-2-yl]-1,3-dimethyl-4-oxopentyl]-2-propenyl)-10-hydroxy-10-methyl-1,7-dioxaspiro[5.5]undec-2-yl]a2-bromo-1-ethoxy-2-propenyl ethyl ether; 2-bromo-3,3-diethoxy-1-propene(2S)-1-[[tert-butyl(dimethyl)silyl]oxy]-4-(diethoxymethyl)-4-penten-2-ol2-[[(4S)-2,2-dimethyl-1,3-dioxolan-4-yl]methyl]acrylaldehydetributyl(2-[[(4S)-2,2-dimethyl-1,3-dioxolan-4-yl]methyl]-2-propenyl)stannanetert-butyl(dimethyl)[(2S)oxiranylmethoxy]silane; tert-butyl(dimethyl)silyl (2S)oxiranylmethyl ether5-[(triisopropylsilyl)oxy]pentanal(3R,4R)-3-methyl-8-[(triisopropylsilyl)oxy]-1-octen-4-ol[[(5R,6R)-5-(benzyloxy)-6-methyl-7-octenyl]oxy](triisopropyl)silane; benzyl (1R,2R)-2-methyl-1-[4-[(triisopropylsilyl)oxy]butyl]-3-butenyl ether(2S,3R)-3-(benzyloxy)-2-methyl-7-[(triisopropylsilyl)oxy]heptanal(4S,5R,6R)-6-(benzyloxy)-5-methyl-10-[(triisopropylsilyl)oxy]-1-decen-4-olbenzyl (1R,2S,3S)-2-methyl-3-[(triisopropylsilyl)oxy]-1-[4-[(triisopropylsilyl)oxy]butyl]-5-hexenyl ether; (5S,6S,7R)-5-allyl-7-(benzyloxy)-3,3,13,13-tetraisopropyl-2,6,14-trimethyl-4,12-dioxa-3,13-disilapentadecanetriisopropyl(4-[(2R,3S,4R)-3-methyl-4-[(triisopropylsilyl)oxy]-3,4-dihydro-2H-pyran-2-yl]butoxy)silane; (2R,3S,4R)-3-methyl-2-[4-[(triisopropylsilyl)oxy]butyl]-3,4-dihydro-2H-pyran-4-yl triisopropylsilyl ether(4-[(2R,3S,4R)-6-iodo-3-methyl-4-[(triisopropylsilyl)oxy]-3,4-dihydro-2H-pyran-2-yl]butoxy)(triisopropyl)silane; (2R,3S,4R)-6-iodo-3-methyl-2-[4-[(triisopropylsilyl)oxy]butyl]-3,4-dihydro-2H-pyran-4-yl triisopropylsilyl ether2,3-dichloro-1-propenetributyl(2-[[(4S)-2,2-dimethyl-1,3-dioxolan-4-yl]methyl]-2-propenyl)stannane2-[(triisopropylsilyl)oxy]acetaldehyde(2R,3R)-3-methyl-1-[(triisopropylsilyl)oxy]-4-penten-2-olbenzyl (1R,2R)-2-methyl-1-[[(triisopropylsilyl)oxy]methyl]-3-butenyl ether; [[(2R,3R)-2-(benzyloxy)-3-methyl-4-pentenyl]oxy](triisopropyl)silane(2S,3R)-3-(benzyloxy)-2-methyl-4-[(triisopropylsilyl)oxy]butanal(4S,5R,6R)-6-(benzyloxy)-5-methyl-7-[(triisopropylsilyl)oxy]-1-hepten-4-ol(5S,6S,7R)-5-allyl-7-(benzyloxy)-3,3,10,10-tetraisopropyl-2,6,11-trimethyl-4,9-dioxa-3,10-disiladodecane; benzyl (1R,2S,3S)-2-methyl-3-[(triisopropylsilyl)oxy]-1-[[(triisopropylsilyl)oxy]methyl]-5-hexenyl ethertriisopropyl([(2R,3S,4R)-3-methyl-4-[(triisopropylsilyl)oxy]-3,4-dihydro-2H-pyran-2-yl]methoxy)silane; [(2R,3S,4R)-3-methyl-4-[(triisopropylsilyl)oxy]-3,4-dihydro-2H-pyran-2-yl]methyl triisopropylsilyl ethertriisopropyl([(1S,3R,4S,5R,6S)-4-methyl-5-[(triisopropylsilyl)oxy]-2,7-dioxabicyclo[4.1.0]hept-3-yl]methoxy)silane; [(1S,3R,4S,5R,6S)-4-methyl-5-[(triisopropylsilyl)oxy]-2,7-dioxabicyclo[4.1.0]hept-3-yl]methyl triisopropylsilyl ether(2R,3R,4R,5S,6R)-2-(2-[[(4S)-2,2-dimethyl-1,3-dioxolan-4-yl]methyl]-2-propenyl)-5-methyl-4-[(triisopropylsilyl)oxy]-6-[[(triisopropylsilyl)oxy]methyl]tetrahydro-2H-pyran-3-ol(2R,3S,4R,5R,6R)-2-(2-[[(4S)-2,2-dimethyl-1,3-dioxolan-4-yl]methyl]-2-propenyl)-6-(hydroxymethyl)-5-methyltetrahydro-2H-pyran-3,4-dioltert-butyl(dimethyl)silyl [(2R,3R,4R,5S,6R)-6-(2-[[(4S)-2,2-dimethyl-1,3-dioxolan-4-yl]methyl]-2-propenyl)-4,5-bis[(4-methoxybenzyl)oxy]-3-methyltetrahydro-2H-pyran-2-yl]methyl ether; tert-butyl([(2R,3R,4R,5S,6R)-6-(2-[[(4S)-2,2-dimethyl-1,3-dioxolan-4-yl]methyl]-2-propenyl)-4,5-bis[(4-methoxybenzyl)oxy]-3-methyltetrahydro-2H-pyran-2-yl]methoxy)dimethylsilane(2S)-4-([(2R,3S,4R,5R,6R)-6-([[tert-butyl(dimethyl)silyl]oxy]methyl)-3,4-bis[(4-methoxybenzyl)oxy]-5-methyltetrahydro-2H-pyran-2-yl]methyl)-2-hydroxy-4-pentenyl pivalate(2S)-4-([(2R,3S,4R,5R,6R)-6-([[tert-butyl(dimethyl)silyl]oxy]methyl)-3,4-bis[(4-methoxybenzyl)oxy]-5-methyltetrahydro-2H-pyran-2-yl]methyl)-2-[(triisopropylsilyl)oxy]-4-penten-1-ol(2S)-4-([(2R,3S,4R,5R,6R)-6-([[tert-butyl(dimethyl)silyl]oxy]methyl)-3,4-bis[(4-methoxybenzyl)oxy]-5-methyltetrahydro-2H-pyran-2-yl]methyl)-2-[(triisopropylsilyl)oxy]-4-pentenal([(1S,2E)-1-[2-([(2R,3S,4R,5R,6R)-6-([[tert-butyl(dimethyl)silyl]oxy]methyl)-3,4-bis[(4-methoxybenzyl)oxy]-5-methyltetrahydro-2H-pyran-2-yl]methyl)-2-propenyl]-4-chloro-2,4-pentadienyl]oxy)(triisopropyl)silane; tert-butyl(dimethyl)silyl [(2R,3R,4R,5S,6R)-6-[(4S,5E)-7-chloro-2-methylene-4-[(triisopropylsilyl)oxy]-5,7-octadienyl]-4,5-bis[(4-methoxybenzyl)oxy]-3-methyltetrahydro-2H-pyran-2-yl]methyl ether(2R,3R,4R,5S,6R)-6-[(4S,5E)-7-chloro-2-methylene-4-[(triisopropylsilyl)oxy]-5,7-octadienyl]-4,5-bis[(4-methoxybenzyl)oxy]-3-methyltetrahydro-2H-pyran-2-carbaldehyde(4-[(2R,3S,4R)-6-iodo-3-methyl-4-[(triisopropylsilyl)oxy]-3,4-dihydro-2H-pyran-2-yl]butoxy)(triisopropyl)silane; (2R,3S,4R)-6-iodo-3-methyl-2-[4-[(triisopropylsilyl)oxy]butyl]-3,4-dihydro-2H-pyran-4-yl triisopropylsilyl ether(2R,3R,4R,5S,6R)-6-[(4S,5E)-7-chloro-2-methylene-4-[(triisopropylsilyl)oxy]-5,7-octadienyl]-4,5-bis[(4-methoxybenzyl)oxy]-3-methyltetrahydro-2H-pyran-2-carbaldehyde(S)-[(2R,3R,4R,5S,6R)-6-[(4S,5E)-7-chloro-2-methylene-4-[(triisopropylsilyl)oxy]-5,7-octadienyl]-4,5-bis[(4-methoxybenzyl)oxy]-3-methyltetrahydro-2H-pyran-2-yl]((2R,3S,4R)-3-methyl-4-[(triisopropylsilyl)oxy]-2-[4-[(triisopropylsilyl)oxy]butyl]-3,4-d(S)-[(2R,3R,4R,5S,6R)-6-[(4S,5E)-7-chloro-2-methylene-4-[(triisopropylsilyl)oxy]-5,7-octadienyl]-4,5-bis[(4-methoxybenzyl)oxy]-3-methyltetrahydro-2H-pyran-2-yl]((2R,4S,5S,6R)-2-methoxy-5-methyl-4-[(triisopropylsilyl)oxy]-6-[4-[(triisopropylsilyl)oxy(S)-[(2R,4S,5S,6R)-4-[[tert-butyl(dimethyl)silyl]oxy]-6-(4-[[tert-butyl(dimethyl)silyl]oxy]butyl)-2-methoxy-5-methyltetrahydro-2H-pyran-2-yl][(2R,3R,4R,5S,6R)-6-((4S,5E)-4-[[tert-butyl(dimethyl)silyl]oxy]-7-chloro-2-methylene-5,7-octadienyl)-4,5-bis4-[(2R,3S,4S,6R)-4-[[tert-butyl(dimethyl)silyl]oxy]-6-[(S)-[(2R,3R,4R,5S,6R)-6-((4S,5E)-4-[[tert-butyl(dimethyl)silyl]oxy]-7-chloro-2-methylene-5,7-octadienyl)-4,5-bis[(4-methoxybenzyl)oxy]-3-methyltetrahydro-2H-pyran-2-yl](hydroxy)methyl]-6-methoxy(4-[(2R,3S,4S,6R)-4-[[tert-butyl(dimethyl)silyl]oxy]-6-[(S)-[(2R,3R,4R,5S,6R)-6-((4S,5E)-4-[[tert-butyl(dimethyl)silyl]oxy]-7-chloro-2-methylene-5,7-octadienyl)-4,5-bis[(4-methoxybenzyl)oxy]-3-methyltetrahydro-2H-pyran-2-yl](hydroxy)methyl]-6-methoxtert-butyl(diphenyl)silyl 2-[(2R,4S,6R,8S,10S)-4-(acetoxy)-8-(2-[(1R,2S,3S)-2-(acetoxy)-5-[(2S,4S,6S,8R)-8-formyl-4-methoxy-1,7-dioxaspiro[5.5]undec-2-yl]-1,3-dimethyl-4-oxopentyl]-2-propenyl)-10-hydroxy-10-methyl-1,7-dioxaspiro[5.5]undec-2-yl]a(4-[(2R,3S,4S,6R)-4-[[tert-butyl(dimethyl)silyl]oxy]-6-[(S)-[(2R,3R,4R,5S,6R)-6-((4S,5E)-4-[[tert-butyl(dimethyl)silyl]oxy]-7-chloro-2-methylene-5,7-octadienyl)-4,5-bis[(4-methoxybenzyl)oxy]-3-methyltetrahydro-2H-pyran-2-yl](hydroxy)methyl]-6-methox
