SEARCH Articles Figures Tables 1- -2-methyl-4-nitro 1-Methoxycarbonyl-1-nitro 3-Methoxycarbonyl-5-methyl 5- Methoxy-4-nitro- 775 5-Methoxy-4-methyl 5-Methoxycarbonyl-3- Methoxycarbonylation Methoxycarbonylations