Preparation of new nitrogen-bridged heterocycles. 46. Selective formation of 4(1H)-8,8a-dihydro-1,4-thiazino[3,4,5-cd]indolizinone and (E)- 3-(1,3-oxathiol-2-ylidene)-2(3H)-indolizinone derivatives
Kakehi, A.
chemical and pharmaceutical bulletin1998Vol. 46pp. 1866-1871