Studies on total photolytic synthesis of alkaloids—III

A comparison of photolysis and thermal decomposition of the 1-(2-amino-3-benzyloxy-4-methoxybenzyl)-6-benzyloxy-1,2,3,4-tetrahydro-7-methoxy-2-methylis (8) is described together with the synthesis of N-methyllindecarpine (28) by photolysis and the synthetic trials of codeine and sinomenine.